CN115824264A - Method for evaluating and improving process reliability of hollow-core microstructure fiber-optic gyroscope - Google Patents

Method for evaluating and improving process reliability of hollow-core microstructure fiber-optic gyroscope Download PDF

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CN115824264A
CN115824264A CN202310153264.XA CN202310153264A CN115824264A CN 115824264 A CN115824264 A CN 115824264A CN 202310153264 A CN202310153264 A CN 202310153264A CN 115824264 A CN115824264 A CN 115824264A
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optical fiber
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fiber
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CN115824264B (en
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罗巍
王玥泽
颜苗
陈涛
张子剑
陈馨
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707th Research Institute of CSIC
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Abstract

The invention relates to the technical field of fiber optic gyroscope reliability evaluation, in particular to a method for evaluating and improving the process reliability of a hollow-core microstructure fiber optic gyroscope, which comprises the following steps: establishing a hollow microstructure fiber-optic gyroscope process reliability evaluation equation, and determining through experiments
Figure ZY_2
、
Figure ZY_7
、
Figure ZY_13
、
Figure ZY_4
、
Figure ZY_8
、
Figure ZY_12
、
Figure ZY_15
And corresponding optimal parameters; will be provided with
Figure ZY_1
、
Figure ZY_3
、
Figure ZY_6
、
Figure ZY_10
、
Figure ZY_5
、
Figure ZY_9
、
Figure ZY_11
Substituting the evaluation value into a reliability evaluation equation to calculate the evaluation value of the process reliability of the hollow-core microstructure optical fiber gyroscope

Description

Method for evaluating and improving process reliability of hollow-core microstructure fiber-optic gyroscope
Technical Field
The invention relates to the technical field of optical fiber gyroscope reliability evaluation, in particular to a method for evaluating and improving the process reliability of a hollow-core microstructure optical fiber gyroscope.
Background
The optical fiber gyroscope, as a novel optical gyroscope instrument, has the advantages of high reliability, impact vibration resistance, long service life, high starting speed and the like, and is widely applied to a plurality of military and civil fields. However, when the temperature of the operating environment of the fiber optic gyroscope changes, thermally induced non-reciprocal phase noise, i.e., a SHUPE error, is generated in the fiber optic ring sensor (for short, a fiber optic ring) which is a core component of the fiber optic gyroscope. The error cannot be distinguished from the SAGNAC effect of sensing the earth rotation speed by the fiber-optic gyroscope, and the actual detection precision of the fiber-optic gyroscope is seriously reduced. The hollow microstructure fiber optic gyroscope is a novel fiber optic gyroscope with a hollow microstructure fiber wound around a fiber optic ring. The looping difficulty of winding the optical fiber loop by adopting the hollow microstructure optical fiber is high, the winding period is long, the cost is high, and the quality of the optical fiber loop is a key factor influencing the reliability of the optical fiber gyroscope. The main factors influencing the quality of the hollow-core microstructure optical fiber loop include not only the intrinsic characteristics of the hollow-core microstructure optical fiber in the optical fiber loop, the solidified colloid and other component materials, but also various technological parameters of the winding of the hollow-core microstructure optical fiber loop, such as: the winding process parameters, the glue applying parameters, the curing parameters, the framework removing process parameters and the like, if the control is not good, the quality of the optical fiber loop cannot be ensured, and the reliability of the optical fiber gyroscope is greatly influenced. Therefore, the reliability of the optical fiber gyroscope can be more accurately evaluated only by starting from the process reliability of the optical fiber loop, the evaluation result is more credible, and the optical fiber gyroscope can be manufactured by utilizing the optimal parameters obtained in the evaluation process, so that the reliability of the optical fiber gyroscope can be improved.
Disclosure of Invention
The invention aims to solve the technical problem of providing a hollow-core microstructure fiber-optic gyroscope process reliability assessment and promotion method, starting from the process reliability of an optical fiber ring, controlling the process parameters of the optical fiber ring, accurately assessing the reliability of the fiber-optic gyroscope, and utilizing the optimal parameters obtained in the assessment process to manufacture the fiber-optic gyroscope, thereby promoting the process reliability of the fiber-optic gyroscope.
The invention is realized by the following technical scheme:
a method for evaluating and improving the process reliability of a hollow-core microstructure fiber optic gyroscope comprises the following steps:
s1: establishing a hollow-core microstructure fiber optic gyroscope process reliability evaluation equation as a formula (1):
Figure SMS_1
（1）
wherein:
Figure SMS_4
the method is an evaluation value of the process reliability of the hollow-core microstructure fiber-optic gyroscope,
Figure SMS_6
is an evaluation value of the reliability of the rewinding process of the hollow-core microstructure optical fiber,
Figure SMS_8
is an evaluation value of the fiber splitting process reliability of the hollow-core microstructure optical fiber,
Figure SMS_3
is an evaluation value of the reliability of the winding process with low tension and high symmetry of the hollow microstructure fiber,
Figure SMS_5
for an assessment of the reliability of the sizing process,
Figure SMS_7
for an evaluation of the reliability of the curing process,
Figure SMS_9
for an evaluation of the reliability of the deboning process,
Figure SMS_2
the evaluation value is the reliability of the bonding process;
s2: under the condition of unchanged process parameters of other procedures, the rewinding is changedMaking a plurality of optical fiber loops by the process rewinding tension to obtain an evaluation value of the reliability of the rewinding process of the hollow-core microstructure optical fiber under the optimal rewinding tension
Figure SMS_10
(ii) a Under the condition that the technological parameters of other procedures are not changed, the fiber feeding and splitting tension in the fiber feeding and splitting procedure is changed to form a plurality of optical fiber loops, and the evaluation value of the fiber feeding and splitting process reliability of the hollow microstructure optical fiber under the optimal fiber feeding and splitting tension is obtained
Figure SMS_11
(ii) a Under the condition that the technological parameters of other procedures are not changed, the winding tension of the low-tension high-symmetry winding procedure is changed to manufacture a plurality of optical fiber loops, and the evaluation value of the reliability of the low-tension high-symmetry winding process of the hollow microstructure optical fiber under the optimal winding tension is obtained
Figure SMS_12
(ii) a Under the condition that the technological parameters of other procedures are not changed, the winding speed of the glue applying procedure is changed to manufacture a plurality of optical fiber loops, and the evaluation value of the glue applying process reliability under the optimal winding speed is obtained
Figure SMS_13
(ii) a Under the condition that the technological parameters of other procedures are not changed, the curing time of the curing procedure is changed to manufacture a plurality of optical fiber loops, and the estimated value of the curing process reliability under the optimal curing time is obtained
Figure SMS_14
(ii) a Under the condition that the technological parameters of other procedures are not changed, the bone removal tension of the bone removal procedure is changed to be made into a plurality of optical fiber loops, and the evaluation value of the reliability of the bone removal process under the optimal bone removal tension is obtained
Figure SMS_15
(ii) a Under the condition that the technological parameters of other procedures are not changed, the thickness of the bonding glue in the bonding procedure is changed to manufacture a plurality of optical fiber loops, and the evaluation value of the reliability of the bonding process under the optimal bonding glue thickness is obtained
Figure SMS_16
；
S3: calculated by S2
Figure SMS_18
、
Figure SMS_20
、
Figure SMS_22
、
Figure SMS_19
、
Figure SMS_21
、
Figure SMS_23
、
Figure SMS_24
Substituting the result into the formula (1) to calculate the evaluation value of the process reliability of the hollow-core microstructure fiber-optic gyroscope
Figure SMS_17
；
S4: in the later-stage manufacturing process of the hollow microstructure fiber optic gyroscope, the optical fiber loop is manufactured by adopting the optimal rewinding tension, the optimal fiber feeding and separating tension, the optimal winding speed, the optimal curing time, the optimal bone removal tension and the optimal thickness of the adhesive glue in the S2, and then the tail fiber of the optical fiber loop and the Y waveguide tail fiber are connected to manufacture the hollow microstructure fiber optic gyroscope.
Further, S2 evaluation value of reliability of hollow core microstructure optical fiber rewinding process
Figure SMS_25
The method comprises the following steps: under the condition that the technological parameters of other procedures are unchanged and the rewinding tension is changed in a set range in the rewinding procedure, the hollow-core microstructure optical fiber is respectively made into a plurality of optical fiber loops under each rewinding tension, then the full-temperature zero offset and the scale factor of the plurality of optical fiber loops under each rewinding tension are tested, and the number of qualified optical fiber loop samples after preparation is recorded
Figure SMS_26
Then placing the qualified optical fiber loops prepared under different rewinding tensions in different test boxes for accelerated aging tests, taking out the optical fiber loops after reaching the set time, and respectively testing the optical fiber loops by using the full-temperature zero-offset and scale factor to obtain the qualified optical fiber loop samples subjected to the reliability aging tests under different rewinding tensions
Figure SMS_27
Then, according to the formula (2), the reliability of the rewinding process of the hollow-core microstructure optical fiber under different rewinding tensions is calculated
Figure SMS_28
And selecting all rewinding tensions
Figure SMS_29
The maximum value of the optical fiber is used as an evaluation value of the reliability of the hollow-core microstructure optical fiber rewinding process
Figure SMS_30
Then in the later-stage hollow-core microstructure optical fiber gyroscope manufacturing process, the method can be used for solving the problem of low cost
Figure SMS_31
The rewinding tension at the maximum value is the optimal rewinding tension to rewind the hollow-core microstructure optical fiber:
Figure SMS_32
（2）。
further, S2 evaluation value of fiber splitting process reliability on hollow core microstructure optical fiber
Figure SMS_33
The method comprises the following steps: under the condition that the process parameters of other procedures are not changed and the fiber feeding and splitting procedures change the fiber feeding and splitting tension in a set range, the hollow micro-structure optical fiber is respectively made into a plurality of optical fiber loops under each fiber feeding and splitting tension, and then the total temperature zero offset and the scale factor of the plurality of optical fiber loops under different fiber feeding and splitting tensions are measuredTesting and recording the qualified sample number of optical fiber loops after preparation
Figure SMS_34
Then placing the qualified optical fiber loops prepared under different fiber-feeding fiber-splitting tensions in different test boxes for accelerated aging tests, taking out the optical fiber loops after a set time period, and respectively testing the optical fiber loops by all-temperature zero-offset and scale factor to obtain the qualified optical fiber loop sample number after the reliability aging tests under different fiber-feeding fiber-splitting tensions
Figure SMS_35
Then, the fiber-dividing procedure reliability of the hollow-core microstructure optical fiber under different fiber-dividing tensions is calculated according to the formula (3)
Figure SMS_36
And selecting all the upper fibers under the fiber dividing tension
Figure SMS_37
The maximum value of (a) is used as an evaluation value of the reliability of the fiber splitting process on the hollow-core microstructure optical fiber
Figure SMS_38
Then in the later-stage hollow-core microstructure optical fiber gyroscope manufacturing process, the method can be used for solving the problem of low cost
Figure SMS_39
And (3) carrying out fiber feeding and fiber splitting on the hollow microstructure optical fiber by taking the fiber feeding and splitting tension at the maximum value as the optimal fiber feeding and splitting tension:
Figure SMS_40
（3）。
further, S2 evaluation value of reliability of low-tension high-symmetry winding process of hollow core microstructure optical fiber
Figure SMS_41
The method comprises the following steps: under the conditions that the technological parameters of other procedures are not changed and the winding tension of the low-tension high-symmetry winding procedure is changed within a set range, the hollow microstructure optical fiber is wound under each winding tensionRespectively manufacturing a plurality of optical fiber loops, testing the full-temperature zero offset and the scale factor of the optical fiber loops under different winding tensions, and recording the qualified sample number of the optical fiber loops after preparation
Figure SMS_42
Then, placing the qualified optical fiber loops prepared under different winding tensions in different test boxes for accelerated aging tests, taking out the optical fiber loops after reaching a set time period, and respectively testing the full-temperature zero offset and the scale factor to obtain qualified optical fiber loop samples subjected to the reliability aging tests under different winding tensions
Figure SMS_43
Then, according to the formula (4), the reliability of the low-tension high-symmetry winding process of the hollow microstructure optical fiber under different winding tensions is calculated
Figure SMS_44
And selecting all winding tensions
Figure SMS_45
The maximum value of the optical fiber is used as an evaluation value of the reliability of the low-tension high-symmetry winding process of the hollow microstructure optical fiber
Figure SMS_46
Then in the later-stage hollow-core microstructure optical fiber gyroscope manufacturing process, the method can be used for solving the problem of low cost
Figure SMS_47
The winding tension at the maximum value is the optimal winding tension to carry out low-tension high-symmetry winding on the hollow microstructure optical fiber:
Figure SMS_48
（4）。
further, evaluation value of reliability of sizing process in S2
Figure SMS_49
The method comprises the following steps: the winding speed is changed within the set range in the glue applying process while the technological parameters in other processes are unchangedUnder the condition of temperature, the hollow-core microstructure optical fiber is respectively made into a plurality of optical fiber loops at each winding speed, then the full-temperature zero offset and the scale factor of the plurality of optical fiber loops at different winding speeds are tested, and the qualified optical fiber loop sample number after the preparation is recorded
Figure SMS_50
Then placing the qualified optical fiber loops prepared at different winding speeds in different test boxes for accelerated aging tests, taking out the optical fiber loops after reaching a set time period, and respectively testing the full-temperature zero offset and the scale factor to obtain the qualified optical fiber loop sample number after the reliability aging tests at different winding speeds
Figure SMS_51
Then calculating the reliability of the gluing process of the hollow microstructure optical fiber at different winding speeds according to the formula (5)
Figure SMS_52
And selecting all winding speeds
Figure SMS_53
Maximum value of (2) as an estimate of the reliability of the sizing process
Figure SMS_54
Then in the later-stage hollow-core microstructure optical fiber gyroscope manufacturing process, the method can be used for solving the problem of low cost
Figure SMS_55
The winding speed at the maximum value is the optimal winding speed to glue the hollow-core microstructure optical fiber:
Figure SMS_56
（5）。
further, evaluation value of curing process reliability in S2
Figure SMS_57
The method comprises the following steps: the curing time is changed within the set range in the curing process when the process parameters of other processes are not changedUnder the condition, the hollow-core microstructure optical fiber is respectively made into a plurality of optical fiber loops at each curing time, then the full-temperature zero offset and the scale factor of the plurality of optical fiber loops at different curing times are tested, and the number of qualified optical fiber loop samples after the preparation is finished is recorded
Figure SMS_58
Then placing the qualified optical fiber loops prepared in different curing times in different test boxes for accelerated aging tests, taking out the optical fiber loops after reaching a set time period, and respectively carrying out full-temperature zero-offset and scale factor tests to obtain the qualified optical fiber loop sample number after the reliability aging tests in different curing times
Figure SMS_59
Then, the reliability of the gluing process of the hollow microstructure optical fiber at different winding speeds is calculated according to the formula (6)
Figure SMS_60
And selecting all curing time
Figure SMS_61
As an evaluation value of the curing process reliability
Figure SMS_62
Then in the later-stage hollow-core microstructure optical fiber gyroscope manufacturing process, so as to
Figure SMS_63
Curing the hollow-core microstructure optical fiber loop by taking the curing time at the maximum value as the optimal curing time:
Figure SMS_64
（6）。
further, evaluation value of reliability of bone removal process in S2
Figure SMS_65
The method comprises the following steps: the bone-removing tension is changed within a set range in the bone-removing process when the process parameters of other processes are not changedThen, the hollow-core microstructure optical fiber is respectively made into a plurality of optical fiber loops under each bone-removing tension, then the total temperature zero offset and the scale factor of the plurality of optical fiber loops under different bone-removing tensions are tested, and the number of qualified optical fiber loop samples after the preparation is finished is recorded
Figure SMS_66
Then placing the qualified optical fiber loops prepared under different bone-removing tensions in different test boxes for accelerated aging tests, taking out the optical fiber loops after reaching a set time period, and respectively carrying out full-temperature zero-offset and scale factor tests to obtain the qualified optical fiber loop sample number after the reliability aging tests under different bone-removing tensions
Figure SMS_67
Then, the reliability of the gluing process of the hollow microstructure optical fiber under different bone-removing tensions is calculated according to the formula (7)
Figure SMS_68
And selecting all bone-out tensions
Figure SMS_69
The maximum value of (A) is used as an evaluation value of the reliability of the bone removal process
Figure SMS_70
Then in the later-stage hollow-core microstructure optical fiber gyroscope manufacturing process, the method can be used for solving the problem of low cost
Figure SMS_71
The bone removal tension at the maximum value is the optimal bone removal tension to remove the bone of the hollow microstructure optical fiber ring:
Figure SMS_72
（7）。
further, evaluation value of reliability of bonding process in S2
Figure SMS_73
The method comprises the following steps: the condition that the thickness of the adhesive is changed in the set range in the adhesive process without changing the process parameters in other processesThen, the hollow-core microstructure optical fiber is respectively made into a plurality of optical fiber loops under each adhesive thickness, then the full-temperature zero offset and the scale factor of the plurality of optical fiber loops under different adhesive thicknesses are tested, and the number of qualified optical fiber loop samples after preparation is recorded
Figure SMS_74
Then placing the qualified optical fiber loops prepared under different adhesive glue thicknesses in different test boxes for accelerated aging tests, taking out the optical fiber loops after a set time period is reached, and respectively carrying out full-temperature zero-offset and scale factor tests to obtain the qualified optical fiber loop sample number after the reliability aging tests under different adhesive glue thicknesses
Figure SMS_75
Then, according to the formula (8), the reliability of the bonding process of the hollow-core microstructure optical fiber under different adhesive glue thicknesses is calculated
Figure SMS_76
And selecting the thickness of all the bonding glue
Figure SMS_77
Maximum value of as an evaluation value of reliability of the bonding process
Figure SMS_78
Then in the later-stage hollow-core microstructure optical fiber gyroscope manufacturing process, so as to
Figure SMS_79
The thickness of the bonding glue at the maximum value is the optimal thickness of the bonding glue to bond the hollow-core microstructure optical fiber ring:
Figure SMS_80
（8）。
optimally, the time for the fiber loop to be placed in the test chamber for the accelerated aging test is 30 natural days.
The invention has the beneficial effects that:
the method for evaluating and improving the process reliability of the hollow-core microstructure fiber-optic gyroscope starts from the process reliability of the optical fiber ring, controls the process parameters of the optical fiber ring, accurately evaluates the reliability of the fiber-optic gyroscope, and utilizes the optimal parameters obtained in the evaluation process to manufacture the fiber-optic gyroscope, thereby improving the process reliability of the fiber-optic gyroscope.
Detailed Description
A method for evaluating and improving the process reliability of a hollow-core microstructure fiber optic gyroscope comprises the following steps:
s1: establishing a hollow-core microstructure fiber-optic gyroscope process reliability evaluation equation as formula (1):
Figure SMS_81
（1）
wherein:
Figure SMS_83
the method is an evaluation value of the process reliability of the hollow-core microstructure fiber-optic gyroscope,
Figure SMS_85
is an evaluation value of the reliability of the hollow-core microstructure optical fiber rewinding process,
Figure SMS_87
is an evaluation value of the fiber splitting process reliability of the hollow-core microstructure optical fiber,
Figure SMS_84
is a hollow microstructure optical fiber with low tension and high symmetry an evaluation value of the reliability of the winding process,
Figure SMS_86
for an assessment of the reliability of the sizing process,
Figure SMS_88
for an evaluation of the reliability of the curing process,
Figure SMS_89
for an evaluation of the reliability of the deboning process,
Figure SMS_82
the evaluation value is the reliability of the bonding process; the technical reliability of the hollow-core microstructure fiber optic gyroscope is organically related to the technical reliability of the optical fiber ring by establishing a hollow-core microstructure fiber optic gyroscope technical reliability evaluation equation, the technical reliability of each technology of the optical fiber ring is effectively evaluated by controlling the technical parameters of the optical fiber ring, which are the core component of the fiber optic gyroscope, and the technical reliability of the fiber optic gyroscope can be effectively and accurately evaluated according to the hollow-core microstructure fiber optic gyroscope technical reliability evaluation equation.
S2: under the condition that the technological parameters of other procedures are not changed, the rewinding tension of the rewinding procedure is changed to manufacture a plurality of optical fiber loops, and the evaluation value of the reliability of the rewinding process of the hollow-core microstructure optical fiber under the optimal rewinding tension is obtained
Figure SMS_90
(ii) a Under the condition that the technological parameters of other procedures are not changed, the fiber feeding and splitting tension in the fiber feeding and splitting procedure is changed to form a plurality of optical fiber loops, and the evaluation value of the fiber feeding and splitting process reliability of the hollow microstructure optical fiber under the optimal fiber feeding and splitting tension is obtained
Figure SMS_91
(ii) a Under the condition that the technological parameters of other procedures are not changed, the winding tension of the low-tension high-symmetry winding procedure is changed to manufacture a plurality of optical fiber loops, and the evaluation value of the reliability of the low-tension high-symmetry winding process of the hollow microstructure optical fiber under the optimal winding tension is obtained
Figure SMS_92
(ii) a Under the condition that the technological parameters of other procedures are not changed, the winding speed of the glue applying procedure is changed to manufacture a plurality of optical fiber loops, and the evaluation value of the glue applying process reliability under the optimal winding speed is obtained
Figure SMS_93
(ii) a Under the condition that the technological parameters of other procedures are not changed, the curing time of the curing procedure is changed to manufacture a plurality of optical fiber loops, and the estimated value of the curing process reliability under the optimal curing time is obtained
Figure SMS_94
(ii) a Under the condition that the technological parameters of other procedures are not changed, the bone removal tension of the bone removal procedure is changed to be made into a plurality of optical fiber loops, and the evaluation value of the reliability of the bone removal process under the optimal bone removal tension is obtained
Figure SMS_95
(ii) a Under the condition that the technological parameters of other procedures are not changed, the thickness of the bonding glue in the bonding procedure is changed to manufacture a plurality of optical fiber loops, and the evaluation value of the reliability of the bonding process under the optimal bonding glue thickness is obtained
Figure SMS_96
(ii) a The method can accurately evaluate the reliability of each process of the core component, namely the optical fiber ring, in the manufacturing process of the optical fiber gyroscope.
S3: calculated from S2
Figure SMS_99
、
Figure SMS_100
、
Figure SMS_102
、
Figure SMS_98
、
Figure SMS_101
、
Figure SMS_103
、
Figure SMS_104
Substituting the result into the formula (1) to calculate the evaluation value of the process reliability of the hollow-core microstructure fiber-optic gyroscope
Figure SMS_97
(ii) a The process reliability of the optical fiber gyroscope evaluated in the way is more effective.
S4: in the later-stage manufacturing process of the hollow microstructure fiber optic gyroscope, the optical fiber loop is manufactured by adopting the optimal rewinding tension, the optimal fiber feeding and separating tension, the optimal winding speed, the optimal curing time, the optimal bone removal tension and the optimal thickness of the adhesive glue in the S2, and then the tail fiber of the optical fiber loop and the Y waveguide tail fiber are connected to manufacture the hollow microstructure fiber optic gyroscope.
In the process of manufacturing the optical fiber gyroscope, the reliability of the manufactured optical fiber gyroscope is obviously improved by controlling various parameters of the optical fiber gyroscope core component-optical fiber ring. The fiber-optic gyroscope comprises a light source, a coupler, a detector and a modem besides the fiber-optic ring and the Y waveguide, and the connection relationship among the components belongs to the prior art and is not described in detail. Because the components have little influence on the reliability of the optical fiber gyro and do not need to be manufactured on site, the components are not considered, the process parameters of the optical fiber loop are controlled only by starting from the process reliability of the optical fiber loop, the reliability of the optical fiber gyro is accurately evaluated, the optical fiber gyro is manufactured by utilizing the optimal parameters obtained in the evaluation process, and the process reliability of the optical fiber gyro can be greatly improved.
Further, S2 evaluation value of reliability of hollow core microstructure optical fiber rewinding process
Figure SMS_105
The method comprises the following steps: under the condition that the technological parameters of other procedures are unchanged and the rewinding tension is changed in a set range in the rewinding procedure, the hollow-core microstructure optical fiber is respectively made into a plurality of optical fiber loops under each rewinding tension, then the full-temperature zero offset and the scale factor of the plurality of optical fiber loops under each rewinding tension are tested, and the number of qualified optical fiber loop samples after preparation is recorded
Figure SMS_106
Then placing the qualified optical fiber loops prepared under different rewinding tensions in different test boxes for accelerated aging tests, taking out the optical fiber loops after reaching the set time, respectively testing the optical fiber loops by using the full-temperature zero offset and the scale factor to obtain the sample number of the unqualified optical fiber loops subjected to the reliability aging tests under different rewinding tensions
Figure SMS_107
Then, according to the formula (2), the reliability of the rewinding process of the hollow-core microstructure optical fiber under different rewinding tensions is calculated
Figure SMS_108
And selecting all rewinding tensions
Figure SMS_109
The maximum value of the optical fiber is used as an evaluation value of the reliability of the hollow-core microstructure optical fiber rewinding process
Figure SMS_110
Then in the later-stage hollow-core microstructure optical fiber gyroscope manufacturing process, the method can be used for solving the problem of low cost
Figure SMS_111
The rewinding tension at the maximum value is the optimal rewinding tension to rewind the hollow-core microstructure optical fiber:
Figure SMS_112
（2）。
the evaluation value of the reliability of the hollow-core microstructure optical fiber rewinding process is determined by adopting the test method
Figure SMS_113
The method can be used for evaluating the process reliability of the optical fiber gyroscope, and can obtain the optimal rewinding tension value when the reliability evaluation value of the hollow-core microstructure optical fiber rewinding process is the maximum, so that the optimal rewinding tension value is adopted to rewind the hollow-core microstructure optical fiber in the later-stage core component-optical fiber ring manufacturing process of the optical fiber gyroscope, and the reliability of the optical fiber gyroscope can be improved.
The specific test method takes the rewinding tension of 0.5 gram-force, 1 gram-force and 2 gram-force respectively as an example, and takes 10 optical fiber loops as an example for different rewinding tensions to carry out the test: under the condition that other parameters are not changed, the prepared optical fiber loop is firstly subjected to full-temperature zero-deviation and scale factor tests, and the prepared optical fiber loop is in a set range, namely a reasonable range because the adopted rewinding tension is in the set rangeIts full temperature zero offset and scale tests should all be acceptable. The specific full-temperature zero offset and scale testing method belongs to the prior art and is not described in detail. However, the optical fiber loops made of different rewinding tensions have different aging resistance, so that the qualified sample numbers of the optical fiber loops after the aging resistance test are different, and the reliability value of the rewinding process under each rewinding tension can be respectively calculated by using the formula (2)
Figure SMS_114
And can obtain
Figure SMS_115
The specific test results of the optimal rewinding tension value corresponding to the maximum value are shown in table 1:
TABLE 1
Figure SMS_116
Herein, the
Figure SMS_117
Then 0.9, and the corresponding optimal rewinding tension value is 1 gram force.
Further, S2 evaluation value of fiber splitting process reliability on hollow core microstructure optical fiber
Figure SMS_118
The method comprises the following steps: under the condition that the process parameters of other procedures are unchanged and the fiber feeding and splitting procedures change the fiber feeding and splitting tension in a set range, the hollow-core micro-structural optical fiber is respectively made into a plurality of optical fiber loops under each fiber feeding and splitting tension, then the full-temperature zero offset and the scale factor of the plurality of optical fiber loops under different fiber feeding and splitting tensions are tested, and the sample number of qualified optical fiber loops after preparation is recorded
Figure SMS_119
Then placing the qualified optical fiber loops prepared under different fiber dividing tensions in different test boxes for accelerated aging test, taking out the optical fiber loops after reaching a set time period, and respectively carrying out full-temperature zero offset and scale factorTesting to obtain the number of unqualified optical fiber ring samples subjected to reliability aging test under different fiber splitting tensions
Figure SMS_120
Then, the fiber-dividing procedure reliability of the hollow-core microstructure optical fiber under different fiber-dividing tensions is calculated according to the formula (3)
Figure SMS_121
And selecting all the upper fibers under the fiber dividing tension
Figure SMS_122
The maximum value of the optical fiber is used as an evaluation value of the reliability of the fiber splitting process on the hollow-core microstructure optical fiber
Figure SMS_123
Then in the later-stage hollow-core microstructure optical fiber gyroscope manufacturing process, the method can be used for solving the problem of low cost
Figure SMS_124
And (3) carrying out fiber feeding and fiber splitting on the hollow microstructure optical fiber by taking the fiber feeding and splitting tension at the maximum value as the optimal fiber feeding and splitting tension:
Figure SMS_125
（3）。
the evaluation value of the fiber splitting process reliability of the hollow-core microstructure optical fiber is determined by adopting the test method
Figure SMS_126
The method can be used for evaluating the process reliability of the optical fiber gyroscope, and can obtain the optimal fiber feeding and splitting tension value when the evaluation value of the fiber feeding and splitting process reliability of the hollow-core microstructure optical fiber is the maximum, so that the optimal fiber feeding and splitting tension value is adopted to feed and split the hollow-core microstructure optical fiber in the later-stage core component-optical fiber ring manufacturing process of the optical fiber gyroscope, and the reliability of the optical fiber gyroscope can be improved.
The specific test method is to adopt 1 gram force, 1.5 gram force and 2 gram force as the fiber dividing tension and adopt 5 optical fiber loops as the different fiber dividing tensionsCarrying out tests: under the condition that other parameters are not changed, the prepared optical fiber ring is firstly subjected to full-temperature zero-offset and scale factor tests, and because the adopted fiber feeding and splitting tension is in a set range, namely a reasonable range, the full-temperature zero-offset and scale tests of the prepared optical fiber ring are qualified. The specific full-temperature zero offset and scale testing method belongs to the prior art and is not described in detail. However, the optical fiber loops made of different upper fiber splitting tensions have different aging resistance, so the qualified sample numbers after the aging resistance test are different, and the reliability value of the upper fiber splitting process under each upper fiber splitting tension can be respectively calculated by using the formula (3)
Figure SMS_127
And can obtain
Figure SMS_128
The maximum value corresponds to the optimal fiber-feeding splitting tension value, and the specific test result is shown in table 2:
TABLE 2
Figure SMS_129
Herein, the
Figure SMS_130
Then 1, and the corresponding optimal fiber distributing tension value of the upper fiber is 1.5 gram force.
Further, S2 evaluation value of reliability of low-tension high-symmetry winding process of hollow core microstructure optical fiber
Figure SMS_131
The method comprises the following steps: under the conditions that the technological parameters of other procedures are unchanged and the winding tension is changed in a set range in a low-tension high-symmetry winding procedure, the hollow microstructure optical fiber is respectively made into a plurality of optical fiber loops under each winding tension, then the full-temperature zero-bias and scale factors of the optical fiber loops under different winding tensions are tested, and the qualified optical fiber loop sample number after preparation is recorded
Figure SMS_132
Then placing the qualified optical fiber loops prepared under different winding tensions in different test boxes for accelerated aging tests, taking out the optical fiber loops after a set time period is reached, and respectively carrying out full-temperature zero-offset and scale factor tests to obtain the number of unqualified optical fiber loop samples subjected to the reliability aging tests under different winding tensions
Figure SMS_133
Then, according to the formula (4), the reliability of the low-tension high-symmetry winding process of the hollow microstructure optical fiber under different winding tensions is calculated
Figure SMS_134
And selecting all winding tensions
Figure SMS_135
The maximum value of the optical fiber is used as an evaluation value of the reliability of the low-tension high-symmetry winding process of the hollow microstructure optical fiber
Figure SMS_136
Then in the later-stage hollow-core microstructure optical fiber gyroscope manufacturing process, the method can be used for solving the problem of low cost
Figure SMS_137
The winding tension at the maximum value is the optimal winding tension to carry out low-tension high-symmetry winding on the hollow microstructure optical fiber:
Figure SMS_138
（4）。
the test method is adopted to determine the evaluation value of the reliability of the low-tension high-symmetry winding process of the hollow microstructure optical fiber
Figure SMS_139
The method can be used for evaluating the process reliability of the optical fiber gyroscope, and can obtain the optimal winding tension value when the reliability evaluation value of the low-tension high-symmetry winding process of the hollow microstructure optical fiber is maximum, so that the method is adopted in the later process of manufacturing the core component-optical fiber ring of the optical fiber gyroscopeThe optimal winding tension value performs low-tension high-symmetry winding on the hollow microstructure optical fiber, so that the reliability of the optical fiber gyroscope can be improved.
The specific test method takes the winding tension of 1 gram-force, 1.5 gram-force and 2 gram-force as an example, and takes 10 optical fiber loops as an example for carrying out tests at different winding tensions: under the condition that other parameters are not changed, the prepared optical fiber ring is subjected to full-temperature zero-offset and scale factor test, and because the adopted winding tension is in a set range, namely a reasonable range, the full-temperature zero-offset and scale test of the prepared optical fiber ring is qualified. The specific full-temperature zero offset and scale testing method belongs to the prior art and is not described in detail. However, the optical fiber loops made of different winding tensions have different aging resistance, so that the qualified sample numbers of the optical fiber loops after the aging resistance test are different, and the reliability value of the low-tension high-symmetry winding process under each winding tension can be respectively calculated by using the formula (4)
Figure SMS_140
And can obtain
Figure SMS_141
The maximum value corresponds to the optimal winding tension value, and the specific test result is shown in table 3:
TABLE 3
Figure SMS_142
Herein, the
Figure SMS_143
The winding tension is 0.9, the corresponding optimal winding tension value is 2 gram force, the influence on the hollow microstructure optical fiber is smaller as the winding tension is lower, but the winding efficiency is seriously influenced as the winding tension is too low, and the arrangement precision of the optical fiber is reduced to a certain extent, so that a plurality of groups of winding tension tests need to be carried out, and the winding tension with the optimal reliability of the winding process is determined.
Further, evaluation value of reliability of sizing process in S2
Figure SMS_144
The method comprises the following steps: under the condition that the technological parameters of other procedures are not changed and the winding speed is changed in a set range in the gluing procedure, the hollow-core microstructure optical fiber is respectively made into a plurality of optical fiber loops at each winding speed, then the full-temperature zero offset and the scale factor of the plurality of optical fiber loops at different winding speeds are tested, and the number of qualified optical fiber loop samples after preparation is recorded
Figure SMS_145
Then placing the qualified optical fiber loops prepared at different winding speeds in different test boxes for accelerated aging test, taking out the optical fiber loops after reaching a set time period, and respectively testing the full-temperature zero offset and the scale factor to obtain the number of unqualified optical fiber loop samples subjected to the reliability aging test at different winding speeds
Figure SMS_146
Then calculating the reliability of the gluing process of the hollow microstructure optical fiber at different winding speeds according to the formula (5)
Figure SMS_147
And selecting all winding speeds
Figure SMS_148
As an estimate of the reliability of the sizing process
Figure SMS_149
Then in the later-stage hollow-core microstructure optical fiber gyroscope manufacturing process, the method can be used for solving the problem of low cost
Figure SMS_150
And (3) gluing the hollow-core microstructure optical fiber by taking the winding speed at the maximum value as the optimal winding speed:
Figure SMS_151
（5）。
determination of the evaluation of the reliability of the sizing process using the test method described above
Figure SMS_152
The method can be used for evaluating the process reliability of the optical fiber gyroscope and obtaining the optimal winding speed value when the evaluation value of the process reliability of the optical fiber ring gluing is the maximum. Since the colloid parameters of the sizing process are determined, the fluidity of the colloid is determined, and the winding speed is the key factor influencing the sizing uniformity and the sizing amount in the sizing process. Therefore, in the later manufacturing process of the core component, namely the optical fiber ring of the optical fiber gyroscope, the optimal winding speed value is adopted to glue the hollow microstructure optical fiber, and the reliability of the optical fiber gyroscope can be improved.
The specific test method takes the winding speeds of 5 revolutions per minute, 10 revolutions per minute and 15 revolutions per minute as examples, and 10 optical fiber loops are adopted for the tests at different winding speeds: under the condition that other parameters are not changed, the prepared optical fiber ring is subjected to full-temperature zero-offset and scale factor test, and because the adopted winding speed is in a set range, namely a reasonable range, the full-temperature zero-offset and scale test of the prepared optical fiber ring is qualified. The specific full-temperature zero offset and scale testing method belongs to the prior art and is not described in detail. However, the optical fiber loops made by adopting different winding speeds have different aging resistance, so that the qualified sample numbers after the aging resistance test of the optical fiber loops are different, and the reliability value of the gluing process at each winding speed can be respectively calculated by using the formula (5)
Figure SMS_153
And can obtain
Figure SMS_154
The maximum value corresponds to the optimal winding tension value, and the specific test result is shown in table 4:
TABLE 4
Figure SMS_155
Herein, the
Figure SMS_156
Then 0.9 and the corresponding optimum winding speed value is 10 revolutions per minute.
Further, evaluation value of curing process reliability in S2
Figure SMS_157
The method comprises the following steps: under the condition that the technological parameters of other procedures are unchanged and the curing time of the curing procedure is changed within a set range, the hollow-core microstructure optical fiber is respectively made into a plurality of optical fiber loops in each curing time, then the full-temperature zero offset and the scale factor of the plurality of optical fiber loops in different curing times are tested, and the number of qualified optical fiber loop samples after preparation is recorded
Figure SMS_158
Then placing the qualified optical fiber loops prepared in different curing times in different test boxes for accelerated aging test, taking out the optical fiber loops after reaching a set time period, and respectively testing the optical fiber loops by using the full-temperature zero offset and scale factor to obtain the number of unqualified optical fiber loop samples subjected to the reliability aging test in different curing times
Figure SMS_159
Then, the reliability of the gluing process of the hollow microstructure optical fiber at different winding speeds is calculated according to the formula (6)
Figure SMS_160
And selecting all curing time
Figure SMS_161
As an evaluation value of the curing process reliability
Figure SMS_162
Then in the later-stage hollow-core microstructure optical fiber gyroscope manufacturing process, the method can be used for solving the problem of low cost
Figure SMS_163
Curing the hollow-core microstructure optical fiber loop by taking the curing time at the maximum value as the optimal curing time:
Figure SMS_164
（6）。
determining an evaluation value of curing process reliability by using the test method
Figure SMS_165
The method can be used for evaluating the process reliability of the optical fiber gyroscope, and can obtain the optimal curing time value when the reliability evaluation value of the optical fiber ring curing process is the maximum, so that the optimal curing time value is adopted to perform curing treatment on the hollow-core microstructure optical fiber ring in the later-stage optical fiber gyroscope core component-optical fiber ring manufacturing process, and the reliability of the optical fiber gyroscope can be improved.
The specific test method takes 2h, 3h and 4h as examples of curing time respectively, and takes 5 optical fiber loops as examples of different curing time to carry out the test: under the condition that other parameters are not changed, the prepared optical fiber ring is firstly subjected to full-temperature zero offset and scale factor test, and the curing time is in a set range, namely a reasonable range, so that the full-temperature zero offset and scale test of the prepared optical fiber ring is qualified. The specific full-temperature zero offset and scale testing method belongs to the prior art and is not described in detail. However, the optical fiber loops made by adopting different curing times have different aging resistance, so that the qualified sample numbers after the aging resistance test are different, and the reliability value of the sizing process under each curing time can be respectively calculated by using the formula (6)
Figure SMS_166
And can obtain
Figure SMS_167
The specific test results of the optimum cure time values corresponding to the maximum values are shown in table 5:
TABLE 5
Figure SMS_168
Herein, the
Figure SMS_169
Then 1, corresponding to an optimal cure time value of 4h.
Further, evaluation value of reliability of bone removal process in S2
Figure SMS_170
The method comprises the following steps: under the condition that the process parameters of other procedures are unchanged and the bone removal tension is changed in a set range in the bone removal procedure, the hollow microstructure optical fiber is respectively made into a plurality of optical fiber loops under each bone removal tension, then the total temperature zero offset and the scale factor of the plurality of optical fiber loops under different bone removal tensions are tested, and the sample number of qualified optical fiber loops after preparation is recorded
Figure SMS_171
Then placing the qualified optical fiber loops prepared under different bone-removing tensions in different test boxes for accelerated aging tests, taking out the optical fiber loops after reaching a set time period, and respectively testing the optical fiber loops by using the total temperature zero offset and the scale factor to obtain the number of unqualified optical fiber loop samples subjected to the reliability aging tests under different bone-removing tensions
Figure SMS_172
Then, the reliability of the gluing process of the hollow microstructure optical fiber under different bone-removing tensions is calculated according to the formula (7)
Figure SMS_173
And selecting all bone-out tensions
Figure SMS_174
The maximum value of (A) is used as an evaluation value of the reliability of the bone removal process
Figure SMS_175
Then in the later-stage hollow-core microstructure optical fiber gyroscope manufacturing process, the method can be used for solving the problem of low cost
Figure SMS_176
The bone removal tension at the maximum value is the optimal bone removal tension to remove the bone of the hollow microstructure optical fiber ring:
Figure SMS_177
（7）。
determining an evaluation value of curing process reliability by using the test method
Figure SMS_178
The method can be used for evaluating the process reliability of the optical fiber gyroscope and obtaining the optimal deboning tension value when the reliability evaluation value of the deboning process of the optical fiber loop is the maximum, so that the deboning treatment is carried out on the hollow microstructure optical fiber loop by adopting the optimal deboning tension value in the later-stage core component-optical fiber loop manufacturing process of the optical fiber gyroscope, and the reliability of the optical fiber gyroscope can be improved.
The specific test method takes the bone removal tension of 0.2N, 0.4N and 0.6N as examples respectively, and 10 optical fiber loops are adopted for different bone removal tensions for tests: under the condition that other parameters are not changed, the prepared optical fiber ring is firstly subjected to full-temperature zero offset and scale factor test, and because the adopted bone removal tension is in a set range, namely a reasonable range, the full-temperature zero offset and scale test of the prepared optical fiber ring is qualified. The specific full-temperature zero offset and scale testing method belongs to the prior art and is not described in detail. However, the optical fiber loops made of different bone-removing tensions have different aging resistance, so that the qualified sample numbers of the optical fiber loops subjected to the aging resistance test are different, and the reliability value of the bone-removing process under each bone-removing tension can be respectively calculated by using the formula (7)
Figure SMS_179
And can obtain
Figure SMS_180
The specific results for the optimum bone-removal tension values corresponding to the maximum values are shown in table 6:
TABLE 6
Figure SMS_181
Herein, the
Figure SMS_182
Then 1, corresponding to an optimal bone removal tension value of 0.2N.
Further, evaluation value of reliability of bonding process in S2
Figure SMS_183
The method comprises the following steps: under the condition that the process parameters of other procedures are unchanged and the thickness of the bonding glue is changed in a set range in the bonding procedure, respectively manufacturing the hollow-core microstructure optical fiber into a plurality of optical fiber loops under each thickness of the bonding glue, then testing the total temperature zero offset and the scale factor of the plurality of optical fiber loops under different thicknesses of the bonding glue, and recording the sample number of qualified optical fiber loops after preparation
Figure SMS_184
Then placing the qualified optical fiber loops prepared under different adhesive glue thicknesses in different test boxes for accelerated aging test, taking out the optical fiber loops after reaching a set time period, and respectively carrying out full-temperature zero-offset and scale factor test to obtain the number of unqualified optical fiber loop samples subjected to the reliability aging test under different adhesive glue thicknesses
Figure SMS_185
Then, according to the formula (8), the reliability of the bonding process of the hollow-core microstructure optical fiber under different adhesive glue thicknesses is calculated
Figure SMS_186
And selecting the thickness of all the bonding glue
Figure SMS_187
Maximum value of as an evaluation value of reliability of the bonding process
Figure SMS_188
Then in the later-stage hollow-core microstructure optical fiber gyroscope manufacturing process, the method can be used for solving the problem of low cost
Figure SMS_189
The thickness of the bonding glue at the maximum value is the optimal thickness of the bonding glue to the hollow-core microstructure optical fiber ringBonding:
Figure SMS_190
（8）。
determining evaluation value of bonding process reliability by adopting test method
Figure SMS_191
The method can be used for evaluating the process reliability of the optical fiber gyroscope, and can obtain the optimal adhesive thickness value when the reliability evaluation value of the optical fiber ring bonding process is the maximum, so that the optimal adhesive thickness value is adopted to perform bonding treatment on the hollow microstructure optical fiber ring in the later-stage optical fiber gyroscope core component-optical fiber ring manufacturing process, and the reliability of the optical fiber gyroscope can be improved.
The specific test method takes the adhesive thicknesses of 1mm, 1.5mm and 2mm as examples, and takes 10 optical fiber loops as examples for different adhesive thicknesses to carry out the test: under the condition that other parameters are not changed, the prepared optical fiber ring is subjected to full-temperature zero offset and scale factor test, and the thickness of the adopted bonding glue is in a set range, namely a reasonable range, so that the full-temperature zero offset and scale test of the prepared optical fiber ring is qualified. The specific full-temperature zero offset and scale testing method belongs to the prior art and is not described in detail. However, the optical fiber loops made of different adhesive thicknesses have different aging resistance, so that the qualified sample numbers of the optical fiber loops subjected to the aging resistance test are different, and the reliability value of the bonding process under each adhesive thickness can be calculated by using the formula (8)
Figure SMS_192
And can obtain
Figure SMS_193
The maximum value corresponds to the optimal adhesive thickness value, and the specific test results are shown in table 7:
TABLE 7
Figure SMS_194
Herein, the
Figure SMS_195
Then 0.9, corresponding to an optimal bond paste thickness value of 1.5mm.
To be determined by experiment
Figure SMS_197
、
Figure SMS_199
、
Figure SMS_201
、
Figure SMS_198
、
Figure SMS_200
、
Figure SMS_202
、
Figure SMS_203
The value of (2) is substituted into the formula (1) to calculate the evaluation value of the process reliability of the hollow-core microstructure optical fiber gyroscope
Figure SMS_196
The following were used:
Figure SMS_204
in the manufacturing process of the optical fiber gyroscope, the optimal rewinding tension value, the optimal fiber feeding and separating tension value and the optimal winding tension value are 1 gram force and 2 gram force respectively, the optimal winding speed value is 10 revolutions per minute, the optimal curing time value is 4 hours, the optimal bone removal tension value is 0.2N, the optimal adhesive thickness value is 1.5mm, and the optical fiber gyroscope is used for manufacturing an optical fiber loop, so that the process reliability of the optical fiber gyroscope can be greatly improved.
Optimized, the time for carrying out the accelerated aging test in the test box is 30 natural days, and the aging test can be carried out on multiple physical fields of heat, humidity and vibration, so that the use scene of the fiber-optic gyroscope can be better simulated, and the aging resistance of the fiber-optic ring can be truly and accurately embodied.
In summary, the method for evaluating and improving the process reliability of the hollow-core microstructure fiber optic gyroscope provided by the invention can accurately evaluate the reliability of the fiber optic gyroscope, and can improve the process reliability of the fiber optic gyroscope by using the optimal parameters obtained in the evaluation process to manufacture the fiber optic gyroscope.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. A method for evaluating and improving the process reliability of a hollow-core microstructure fiber optic gyroscope is characterized by comprising the following steps: the method comprises the following steps:
s1: establishing a hollow-core microstructure fiber-optic gyroscope process reliability evaluation equation as formula (1):
Figure QLYQS_1
（1）
wherein:
Figure QLYQS_3
the method is an evaluation value of the process reliability of the hollow-core microstructure fiber-optic gyroscope,
Figure QLYQS_6
is an evaluation value of the reliability of the hollow-core microstructure optical fiber rewinding process,
Figure QLYQS_8
is an evaluation value of the fiber splitting process reliability of the hollow-core microstructure optical fiber,
Figure QLYQS_4
is an evaluation value of the reliability of the winding process with low tension and high symmetry of the hollow microstructure optical fiber,
Figure QLYQS_5
for an assessment of the reliability of the sizing process,
Figure QLYQS_7
for an evaluation of the reliability of the curing process,
Figure QLYQS_9
for an evaluation of the reliability of the deboning process,
Figure QLYQS_2
the evaluation value is the reliability of the bonding process;
s2: under the condition that the technological parameters of other procedures are not changed, the rewinding tension of the rewinding procedure is changed to manufacture a plurality of optical fiber loops, and the evaluation value of the reliability of the rewinding process of the hollow-core microstructure optical fiber under the optimal rewinding tension is obtained
Figure QLYQS_10
(ii) a Under the condition that the technological parameters of other procedures are not changed, the fiber feeding and splitting tension in the fiber feeding and splitting procedure is changed to form a plurality of optical fiber loops, and the evaluation value of the fiber feeding and splitting process reliability of the hollow microstructure optical fiber under the optimal fiber feeding and splitting tension is obtained
Figure QLYQS_11
(ii) a Under the condition that the technological parameters of other procedures are not changed, the winding tension of the low-tension high-symmetry winding procedure is changed to manufacture a plurality of optical fiber loops, and the evaluation value of the reliability of the low-tension high-symmetry winding process of the hollow microstructure optical fiber under the optimal winding tension is obtained
Figure QLYQS_12
(ii) a Under the condition that the technological parameters of other procedures are not changed, the winding speed of the glue applying procedure is changed to manufacture a plurality of optical fiber loops, and the evaluation value of the glue applying process reliability under the optimal winding speed is obtained
Figure QLYQS_13
(ii) a Under the condition that the technological parameters of other procedures are not changed, the curing time of the curing procedure is changed to manufacture a plurality of optical fiber loops, and the estimated value of the curing process reliability under the optimal curing time is obtained
Figure QLYQS_14
(ii) a Under the condition that the technological parameters of other procedures are not changed, the bone removal tension of the bone removal procedure is changed to be made into a plurality of optical fiber loops, and the evaluation value of the reliability of the bone removal process under the optimal bone removal tension is obtained
Figure QLYQS_15
(ii) a Under the condition that the technological parameters of other procedures are not changed, the thickness of the bonding glue in the bonding procedure is changed to manufacture a plurality of optical fiber loops, and the evaluation value of the reliability of the bonding process under the optimal bonding glue thickness is obtained
Figure QLYQS_16
；
S3: calculated from S2
Figure QLYQS_18
、
Figure QLYQS_20
、
Figure QLYQS_22
、
Figure QLYQS_19
、
Figure QLYQS_21
、
Figure QLYQS_23
、
Figure QLYQS_24
Calculation of the hollow core by substitution into equation (1)Evaluation value of microstructure optical fiber gyroscope process reliability
Figure QLYQS_17
；
S4: in the later-stage manufacturing process of the hollow microstructure fiber optic gyroscope, the optical fiber loop is manufactured by adopting the optimal rewinding tension, the optimal fiber feeding and separating tension, the optimal winding speed, the optimal curing time, the optimal bone removal tension and the optimal thickness of the adhesive glue in the S2, and then the tail fiber of the optical fiber loop and the Y waveguide tail fiber are connected to manufacture the hollow microstructure fiber optic gyroscope.
2. The method for evaluating and improving the process reliability of the hollow-core microstructure fiber-optic gyroscope according to claim 1, wherein the method comprises the following steps: s2 evaluation value of reliability of hollow core microstructure optical fiber rewinding process
Figure QLYQS_25
The determination is specifically carried out according to the following method: under the condition that the technological parameters of other procedures are unchanged and the rewinding tension is changed in a set range in the rewinding procedure, the hollow-core microstructure optical fiber is respectively made into a plurality of optical fiber loops under each rewinding tension, then the full-temperature zero offset and the scale factor of the plurality of optical fiber loops under each rewinding tension are tested, and the number of qualified optical fiber loop samples after preparation is recorded
Figure QLYQS_26
Then placing the qualified optical fiber loops prepared under different rewinding tensions in different test boxes for accelerated aging tests, taking out the optical fiber loops after reaching the set time, and respectively testing the optical fiber loops by using the full-temperature zero-offset and scale factor to obtain the qualified optical fiber loop samples subjected to the reliability aging tests under different rewinding tensions
Figure QLYQS_27
Then, according to the formula (2), the reliability of the rewinding process of the hollow-core microstructure optical fiber under different rewinding tensions is calculated
Figure QLYQS_28
And selecting all rewinding tensions
Figure QLYQS_29
The maximum value of the optical fiber is used as an evaluation value of the reliability of the hollow-core microstructure optical fiber rewinding process
Figure QLYQS_30
Then in the later-stage hollow-core microstructure optical fiber gyroscope manufacturing process, the method can be used for solving the problem of low cost
Figure QLYQS_31
Rewinding the hollow microstructure optical fiber with the optimal rewinding tension at the maximum value;
Figure QLYQS_32
（2）。
3. the method for evaluating and improving the process reliability of the hollow-core microstructure fiber-optic gyroscope according to claim 1, wherein the method comprises the following steps: s2 evaluation value of fiber splitting process reliability of hollow core microstructure optical fiber
Figure QLYQS_33
The method comprises the following steps: under the condition that the process parameters of other procedures are unchanged and the fiber feeding and splitting procedures change the fiber feeding and splitting tension in a set range, the hollow-core micro-structural optical fiber is respectively made into a plurality of optical fiber loops under each fiber feeding and splitting tension, then the full-temperature zero offset and the scale factor of the plurality of optical fiber loops under different fiber feeding and splitting tensions are tested, and the sample number of qualified optical fiber loops after preparation is recorded
Figure QLYQS_34
Then placing the qualified optical fiber loops prepared under different fiber-dividing tensions in different test boxes for accelerated aging test, taking out the optical fiber loops after reaching a set time period, and respectively testing the optical fiber loops by full-temperature zero-offset and scale factor to obtain the optical fiber loops under different fiber-dividing tensionsNumber of qualified optical fiber loop samples after reliability aging test
Figure QLYQS_35
Then, the fiber-dividing procedure reliability of the hollow-core microstructure optical fiber under different fiber-dividing tensions is calculated according to the formula (3)
Figure QLYQS_36
And selecting all the upper fibers under the fiber dividing tension
Figure QLYQS_37
The maximum value of the optical fiber is used as an evaluation value of the reliability of the fiber splitting process on the hollow-core microstructure optical fiber
Figure QLYQS_38
Then in the later-stage hollow-core microstructure optical fiber gyroscope manufacturing process, the method can be used for solving the problem of low cost
Figure QLYQS_39
The fiber feeding and splitting tension at the maximum value is the optimal fiber feeding and splitting tension to carry out fiber feeding and splitting on the hollow microstructure optical fiber;
Figure QLYQS_40
（3）。
4. the method for evaluating and improving the process reliability of the hollow-core microstructure fiber-optic gyroscope according to claim 1, wherein the method comprises the following steps: s2 evaluation value of reliability of low-tension high-symmetry winding process of hollow core microstructure optical fiber
Figure QLYQS_41
The method comprises the following steps: under the condition that the technological parameters of other procedures are unchanged and the winding tension is changed in a set range in a low-tension high-symmetry winding procedure, the hollow microstructure optical fiber is respectively made into a plurality of optical fiber loops under each winding tension, then the full-temperature zero-bias and scale factors of the optical fiber loops under different winding tensions are tested, and the prepared hollow microstructure optical fiber is combined after recordingSample number of fiber loop of lattice
Figure QLYQS_42
Then placing the qualified optical fiber loops prepared under different winding tensions in different test boxes for accelerated aging tests, taking out the optical fiber loops after reaching a set time period, and respectively testing the full-temperature zero offset and the scale factor to obtain the qualified optical fiber loop sample number after the reliability aging tests under different winding tensions
Figure QLYQS_43
Then, according to the formula (4), the reliability of the low-tension high-symmetry winding process of the hollow microstructure optical fiber under different winding tensions is calculated
Figure QLYQS_44
And selecting all winding tensions
Figure QLYQS_45
The maximum value of the optical fiber is used as an evaluation value of the reliability of the low-tension high-symmetry winding process of the hollow microstructure optical fiber
Figure QLYQS_46
Then in the later-stage hollow-core microstructure optical fiber gyroscope manufacturing process, the method can be used for solving the problem of low cost
Figure QLYQS_47
The winding tension at the maximum value is the optimal winding tension to carry out low-tension high-symmetry winding on the hollow microstructure optical fiber;
Figure QLYQS_48
（4）。
5. the method for evaluating and improving the process reliability of the hollow-core microstructure fiber-optic gyroscope according to claim 1, wherein the method comprises the following steps: evaluation of reliability of sizing Process in S2
Figure QLYQS_49
The method comprises the following steps: under the condition that the technological parameters of other procedures are not changed and the winding speed is changed in a set range in the gluing procedure, the hollow-core microstructure optical fiber is respectively made into a plurality of optical fiber loops at each winding speed, then the full-temperature zero offset and the scale factor of the plurality of optical fiber loops at different winding speeds are tested, and the number of qualified optical fiber loop samples after preparation is recorded
Figure QLYQS_50
Then placing the qualified optical fiber loops prepared at different winding speeds in different test boxes for accelerated aging tests, taking out the optical fiber loops after reaching a set time period, and respectively testing the full-temperature zero offset and the scale factor to obtain the qualified optical fiber loop sample number after the reliability aging tests at different winding speeds
Figure QLYQS_51
Then calculating the reliability of the gluing process of the hollow microstructure optical fiber at different winding speeds according to the formula (5)
Figure QLYQS_52
And selecting all winding speeds
Figure QLYQS_53
Maximum value of (2) as an estimate of the reliability of the sizing process
Figure QLYQS_54
Then in the later-stage hollow-core microstructure optical fiber gyroscope manufacturing process, the method can be used for solving the problem of low cost
Figure QLYQS_55
The winding speed at the maximum value is the optimal winding speed to glue the hollow-core microstructure optical fiber;
Figure QLYQS_56
（5）。
6. the method for evaluating and improving the process reliability of the hollow-core microstructure fiber-optic gyroscope according to claim 1, wherein the method comprises the following steps: s2 evaluation value of curing process reliability
Figure QLYQS_57
The method comprises the following steps: under the condition that the technological parameters of other procedures are unchanged and the curing time of the curing procedure is changed within a set range, the hollow-core microstructure optical fiber is respectively made into a plurality of optical fiber loops in each curing time, then the full-temperature zero offset and the scale factor of the plurality of optical fiber loops in different curing times are tested, and the number of qualified optical fiber loop samples after preparation is recorded
Figure QLYQS_58
Then placing the qualified optical fiber loops prepared in different curing times in different test boxes for accelerated aging tests, taking out the optical fiber loops after reaching a set time period, and respectively carrying out full-temperature zero-offset and scale factor tests to obtain the qualified optical fiber loop sample number after the reliability aging tests in different curing times
Figure QLYQS_59
Then, the reliability of the gluing process of the hollow microstructure optical fiber at different winding speeds is calculated according to the formula (6)
Figure QLYQS_60
And selecting all curing time
Figure QLYQS_61
As an evaluation value of the curing process reliability
Figure QLYQS_62
Then in the later-stage hollow-core microstructure optical fiber gyroscope manufacturing process, the method can be used for solving the problem of low cost
Figure QLYQS_63
Curing time at maximum value is optimal for hollow-core microstructure optical fiber ringCuring the ring;
Figure QLYQS_64
（6）。
7. the method for evaluating and improving the process reliability of the hollow-core microstructure fiber-optic gyroscope according to claim 1, wherein the method comprises the following steps: evaluation value of reliability of bone removal process in S2
Figure QLYQS_65
The method comprises the following steps: under the condition that the process parameters of other procedures are unchanged and the bone removal tension is changed in a set range in the bone removal procedure, the hollow microstructure optical fiber is respectively made into a plurality of optical fiber loops under each bone removal tension, then the total temperature zero offset and the scale factor of the plurality of optical fiber loops under different bone removal tensions are tested, and the sample number of qualified optical fiber loops after preparation is recorded
Figure QLYQS_66
Then placing the qualified optical fiber loops prepared under different bone-removing tensions in different test boxes for accelerated aging tests, taking out the optical fiber loops after reaching a set time period, and respectively carrying out full-temperature zero-offset and scale factor tests to obtain the qualified optical fiber loop sample number after the reliability aging tests under different bone-removing tensions
Figure QLYQS_67
Then, the reliability of the gluing process of the hollow microstructure optical fiber under different bone-removing tensions is calculated according to the formula (7)
Figure QLYQS_68
And selecting all bone-out tensions
Figure QLYQS_69
The maximum value of (A) is used as an evaluation value of the reliability of the bone removal process
Figure QLYQS_70
Then in the later-stage hollow-core microstructure optical fiber gyroscope manufacturing process, the method can be used for solving the problem of low cost
Figure QLYQS_71
The bone removal tension at the maximum value is the optimal bone removal tension to remove the bone from the hollow microstructure optical fiber loop;
Figure QLYQS_72
（7）。
8. the method for evaluating and improving the process reliability of the hollow-core microstructure fiber-optic gyroscope according to claim 1, wherein the method comprises the following steps: evaluation value of reliability of bonding process in S2
Figure QLYQS_73
The method comprises the following steps: under the condition that the process parameters of other procedures are unchanged and the thickness of the bonding glue is changed in a set range in the bonding procedure, respectively manufacturing the hollow-core microstructure optical fiber into a plurality of optical fiber loops under each thickness of the bonding glue, then testing the total temperature zero offset and the scale factor of the plurality of optical fiber loops under different thicknesses of the bonding glue, and recording the sample number of qualified optical fiber loops after preparation
Figure QLYQS_74
Then placing the qualified optical fiber loops prepared under different adhesive glue thicknesses in different test boxes for accelerated aging tests, taking out the optical fiber loops after a set time period is reached, and respectively carrying out full-temperature zero-offset and scale factor tests to obtain the qualified optical fiber loop sample number after the reliability aging tests under different adhesive glue thicknesses
Figure QLYQS_75
Then, according to the formula (8), the reliability of the bonding process of the hollow-core microstructure optical fiber under different adhesive glue thicknesses is calculated
Figure QLYQS_76
And selecting the thickness of all the bonding glueLower part
Figure QLYQS_77
Maximum value of as an evaluation value of reliability of the bonding process
Figure QLYQS_78
Then in the later-stage hollow-core microstructure optical fiber gyroscope manufacturing process, the method can be used for solving the problem of low cost
Figure QLYQS_79
The thickness of the bonding glue at the maximum value is the optimal thickness of the bonding glue to bond the hollow-core microstructure optical fiber ring;
Figure QLYQS_80
（8）。
9. the method for evaluating and improving the process reliability of the hollow-core microstructure fiber-optic gyroscope according to any one of claims 2 to 8, wherein the method comprises the following steps: the time for the accelerated aging test of the optical fiber loop placed in the test chamber was 30 natural days.
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