CN106595704A - Multi-polarized fiber-optic gyroscope coil winding pattern and structure - Google Patents
Multi-polarized fiber-optic gyroscope coil winding pattern and structure Download PDFInfo
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Abstract
The invention relates to a multi-polarized fiber-optic gyroscope coil winding pattern, which includes the steps of: 1) winding a quadrupolar structure; 2) by means of a forward quadrupolar structure and a reversal quadrupolar structure, winding an octupolar structure; 3) by means of a forward octupolar structure and a reversal octupolar structure, winding a hexadecapolar structure; and 4) by means of a forward hexadecapolar structure and a reversal hexadecapolar structure, winding a dotriaconpolar structure. The arrangement pattern of the fiber-optic gyroscope coil can improve temperature performance of the fiber coil, and especially improve the temperature performance of the fiber coil in an asymmetric temperature environment.
Description
Technical field
The present invention relates to fiber-optics gyroscope field, especially a kind of multipolarization optical fibre gyro ring winding method and knot
Structure.
Background technology
Optical fibre gyro is as new optical gyroscope instrument, fast with reliability height, impact resisting vibrating, life-span length, startup
The advantages of spending fast, has been widely used in multiple military and civil area.But when the temperature of optical fibre gyro working environment is sent out
During changing, in optical fibre gyro core component fiber annular sensor (referred to as：Optical fiber loop) in will produce the non-heterogeneite of thermic
Phase noise, i.e. SHUPE errors.The SAGNAC effects that this error perceives earth rate with optical fibre gyro cannot be distinguished by, seriously
Reduce the actual detection precision of optical fibre gyro.Now both at home and abroad this kind of heat transfer property of fiber annular sensor has been carried out in a large number
Theoretical research, be utilized respectively quadrupole symmetrical winding, the symmetrical winding in the ends of the earth and ten six types of severe debility diseases symmetrical winding optical fiber loop is carried out around
System, to reduce the temperature error of optical fiber loop, and the whole patent of correlation in application at home and abroad of these coiling schemes, even if
Using the symmetrical coiling scheme of existing ten six types of severe debility diseases for optimizing the most (United States Patent, US005475774), fiber optic loop
In circle, remaining temperature error is still very big, has a strong impact on the temperature performance of high-precision optical fiber gyro.Particularly in asymmetric temperature
In degree environment, the temperature error inhibitory action of said method is had a greatly reduced quality.Therefore needing to be optimized design reduces fiber optic loop
Circle temperature error, effectively reduces gyro temperature error particularly under asymmetric temperature conditionss, is high-precision optical fiber gyro development
During key technology be located.
The content of the invention
It is an object of the invention in place of making up the deficiencies in the prior art, there is provided it is a kind of by optical fiber loop temperature error from
Scattered mathematical model is combined with finite element heat transfer model, be have found and is preferably suppressed optical fiber loop compared with the symmetrical winding method of ten six types of severe debility diseases
The coiling scheme of temperature error.
The purpose of the present invention is realized by following technological means：
A kind of winding method of multipolarization optical fibre gyro ring, it is characterised in that：Comprise the following steps：
(1), one quaternary structure of coiling；
(2), using a positive quaternary structure and a reverse quaternary structure around making an ends of the earth structure；
(3), using a positive ends of the earth structure and a reverse ends of the earth structure around making a ten six types of severe debility disease structures；
(4), using ten six types of severe debility disease structure of a forward direction and a reverse ten six types of severe debility diseases structure around making 30 two-level structures.
And, the concrete grammar of (1) described one quaternary structure of coiling of step is：A piece continuous optical fiber is from its midpoint
Start, the optical fiber of both sides is wound on two different point tow wheels respectively, the optical fiber on point tow wheel A is used in coiling ring the
One layer of each circle, the optical fiber on point tow wheel B are used for the second layer of coiling ring, and the second layer is identical with the direction of ground floor, and second
After the completion of layer coiling, still using the optical fiber on this point of tow wheel B, then coiling third layer optical fiber in opposite direction；Subsequently, recycle and divide
Optical fiber on tow wheel A, the 4th layer of coiling this ring, its coiling direction is identical with third layer, so, the light of optical fiber midpoint side
The fine coiling for completing each circle optical fiber of ground floor and the 4th layer, and the optical fiber of opposite side be used to completing two, three two-layers around
Make, the four of coiling layer optical fiber is commonly known as one " quadrupole " in this manner, if represented in optical fiber respectively with "+" and "-"
The optical fiber of point both sides, then this quadrupole structure is "+--+", and, based on this quadrupole unit, repetition is more for quadrupole symmetrical winding
Individual quadrupole coiling.
And, the concrete grammar of (2) described one ends of the earth structure of coiling of step is：Reverse quaternary structure is introduced, wherein inverse
To quaternary structure, its arrangement quaternary structure arrangement (1) described with step is conversely, for "-++-"；It is quadrupole and one with a forward direction
The most basic ends of the earth unit of reverse quadrupole composition "+--+- ++-", the coiling of multiple this ends of the earth unit of repetition can complete the ends of the earth pair
Claim coiling.
And, the concrete grammar of the (3) described one ten six types of severe debility disease structure of coiling of step is：Reverse ends of the earth structure is introduced, wherein
Reverse ends of the earth structure, its arrangement with the (2) described ends of the earth Structural assignments of step conversely, for "-++ -+--+", with a positive ends of the earth
And reverse ends of the earth constitute most basic ten six types of severe debility disease units "+--+- ++ -- ++ -+--+", multiple this ten six types of severe debility diseases unit of repetition
Coiling can complete the symmetrical coiling of ten six types of severe debility diseases.
And, the concrete grammar of (4) described one 30 two-level structure of coiling of step is：Reverse ten six types of severe debility diseases structure is introduced,
Wherein reverse ten six types of severe debility diseases structure, its arrangement with ten (3) described six types of severe debility disease Structural assignments of step conversely, for "-++ -+-- ++ --+-+
+-", with ten six types of severe debility disease of forward direction and reverse ten six types of severe debility disease constitute most basic 32 pole units "+--+- ++ -- ++ -+--
+-++ -+-- ++ --+- ++-", the coiling of multiple this 32 pole unit of repetition can complete 32 extremely symmetrical coilings.
And, 30 (4) described two-level structures of step are by multiple infinitesimal groups with the effect of temperature error self-compensating
Into the infinitesimal is cross arrangement mode.
A kind of multipolarization optical fibre gyro ring of the winding method of the multipolarization optical fibre gyro ring described in employing claim 1
Circle winding structure, it is characterised in that：Including multiple basic 32 pole units, each 32 pole unit is by a forward direction ten
Six types of severe debility disease structure and a reverse ten six types of severe debility diseases structure are constituted, its Structural assignments for "+--+- ++ -- ++ -+--+- ++ -+-- ++ --+-+
+-”。
And, optical fiber loop is divided into multiple with temperature mistake by 30 described two-level structures using cross arrangement mode
The infinitesimal of difference self-compensating effect.
Advantages of the present invention and good effect are：
1st, the present invention is on the basis of forefathers' research, the further perfect discrete mathematics mould of optical fiber loop temperature error
Type, at the same time establishes optical fiber loop heat transfer model using ANSYS finite element analysis softwares and combines, both models are entered
Accurate combination is gone, various different coiling schemes has been contrasted, this intellectual achievement is demonstrated according to theoretical analysis result
The winding of invention preferably suppresses optical fiber loop temperature error compared with the symmetrical winding method of ten six types of severe debility diseases.And this scheme is different from the past
Symmetrical coiling scheme, specific aim optical fiber arrangement design can be carried out according to actual asymmetric temperature environment, therefore more actual
Using value.
2nd, this intellectual achievement is firstly introduced reverse " ten six types of severe debility diseases " on the basis of forefathers are with regard to " ten six types of severe debility diseases " symmetrical coiling
Concept, and optical fiber loop is divided into into multiple infinitesimals with the effect of temperature error self-compensating with " cross arrangement " mode,
And error rejection ability of the optical fiber loop in asymmetric temperature environment can be effectively lifted by changing the arrangement of infinitesimal.And
And in known specific temperature environment, using MATLAB and two Autocads of ANSYS, can further targetedly
Change infinitesimal arrangement, reduce the temperature error of optical fiber loop.
Description of the drawings
Fig. 1 is optical fiber loop coiling schematic diagram by optical fiber midpoint；
Fig. 2 is quadrupole symmetrical coiling schematic diagram；
Fig. 3 is the symmetrical coiling schematic diagram in the ends of the earth；
Fig. 4 is the symmetrical coiling schematic diagram of ten six types of severe debility diseases；
The 32 pole schematic diagrams that Fig. 5 is made up of two reciprocal arrangements；
Fig. 6 is the symmetrical coiling schematic diagram with temperature-compensating infinitesimal.
Specific embodiment
Describe embodiments of the invention below in conjunction with the accompanying drawings in detail；It should be noted that the present embodiment is narrative, no
It is determinate, it is impossible to which protection scope of the present invention is limited with this.
For the ease of understanding the present invention, first to traditional quadrupole symmetrical winding process, the symmetrical winding process in the ends of the earth and 16
Extremely symmetrical winding process is illustrated：
In optical fiber loop, a longer optical fiber is become the coil form of multilamellar by coiling, and each of which layer coiling is complete
Into ring be made up of some circle optical fiber.This optical fiber loop generally all carries out coiling using quadrupole symmetry approach at present.In order to
The optical fiber loop of four polar forms is formed, from the beginning of its midpoint, such as Fig. 1, the optical fiber of both sides are distinguished a continuous optical fiber
It is wound on two different point tow wheels.Tow wheel A is divided to be used for each circle of ground floor in coiling ring, the optical fiber on point tow wheel B is used
After the completion of the second layer of coiling ring, second layer coiling, still using the optical fiber on this point of tow wheel, then coiling in opposite direction
Three layers of optical fiber.Subsequently, the optical fiber on using point tow wheel A, the 4th layer of coiling this ring, its coiling direction and third layer phase
Together.So, the optical fiber of optical fiber midpoint side is used for the coiling of each circle optical fiber for completing ground floor and the 4th layer, and the light of opposite side
The fine coiling for completing two, three two-layers.Four layers of optical fiber of coiling are commonly known as one " quadrupole " in this manner.If used
"+" and "-" represent the optical fiber of optical fiber midpoint both sides respectively, then this quadrupole structure is "+--+", quadrupole symmetrical winding with this one
Based on individual quadrupole unit, the multiple quadrupole coilings of repetition.As shown in Fig. 2 different colours represent separation optical fiber midpoint two in figure
The optical fiber of side.
The symmetrical coiling scheme in the ends of the earth is to introduce reverse quaternary structure on this basis, wherein reverse quaternary structure, its arrangement
With above-mentioned " quadrupole " Structural assignments conversely, for "-++-".So that a forward direction is quadrupole and reverse quadrupole composition is most basic eight
Pole unit "+--+- ++-", the coiling of multiple this ends of the earth unit of repetition can be completed, using the ring of the symmetrical coiling scheme in the ends of the earth
As shown in figure 3, different colours represent the optical fiber of separation optical fiber midpoint both sides in figure.More traditional quadrupole symmetrical coiling, the ends of the earth around
System can preferably lift the temperature performance of optical fiber loop.
On this basis, American scholar was introduced back into the concept of reverse " ends of the earth ", and further upgraded to " ten in 1994
Six types of severe debility disease " coiling, and successfully apply for a patent US005475774, its structure for "+--+- ++ -- ++ -+--+", its schematic diagram such as Fig. 4
It is shown.In figure, different colours represent the optical fiber of separation optical fiber midpoint both sides.
With the continuous improvement of optical fiber gyroscope precision, the temperature performance of existing fiber ring cannot meet market to height
The demand of precision optical fiber gyro, it is therefore desirable to further lift the temperature performance of optical fiber loop.
The coiling scheme that this intellectual achievement is specifically invented is as follows：Macroscopically introduce " inverse on the basis of " ten six types of severe debility diseases " coiling
To ten six types of severe debility diseases ", impact of the temperature error to optical fiber loop temperature performance is further reduced, and on this basis with " intersection row
Optical fiber loop is divided into multiple infinitesimals with the effect of temperature error self-compensating by cloth " mode, and by changing the row of infinitesimal
Cloth can effectively lift error rejection ability of the optical fiber loop in asymmetric temperature environment.Schematic diagram is as shown in Figure 6.
The present invention have developed a kind of multipolarization optical fibre gyro ring winding structure, including multiple basic 32 pole units,
Each 32 pole unit is constituted by ten six types of severe debility disease structure of a forward direction and a reverse ten six types of severe debility diseases structure, and its Structural assignments is
“+--+-++--++-+--+-++-+--++--+-++-”.30 described two-level structures utilize cross arrangement mode by fiber optic loop
Circle is divided into multiple infinitesimals with the effect of temperature error self-compensating.
The winding method of above-mentioned multipolarization optical fibre gyro toroidal ring structure, comprises the following steps：
(1), one quaternary structure of coiling；
From the beginning of its midpoint, the optical fiber of both sides is wound on two different point tow wheels a piece continuous optical fiber respectively,
The optical fiber divided on tow wheel A is used for each circle of ground floor in coiling ring, and the optical fiber on point tow wheel B is used for the second of coiling ring
Layer, the second layer are identical with the direction of ground floor, after the completion of second layer coiling, still using the optical fiber on this point of tow wheel B, then along contrary
Direction coiling third layer optical fiber；Subsequently, recycle the optical fiber on point tow wheel A, the 4th layer of coiling this ring, its coiling direction with
Third layer is identical, and so, the optical fiber of optical fiber midpoint side is used for the coiling of each circle optical fiber for completing ground floor and the 4th layer, and another
The optical fiber of side is used for the coiling for completing two, three two-layers, in this manner the four of coiling layer optical fiber commonly known as one " four
Pole ", if representing the optical fiber of optical fiber midpoint both sides with "+" and "-" respectively, this quadrupole structure is "+--+", quadrupole symmetrical
Winding repeats multiple quadrupole coilings based on this quadrupole unit.
(2), using a positive quaternary structure and a reverse quaternary structure around making an ends of the earth structure；
Reverse quaternary structure is introduced, wherein reverse quaternary structure, its arrangement quaternary structure arrangement phase (1) described with step
Instead, be "-++-"；With a forward direction is quadrupole and reverse quadrupole composition is most basic ends of the earth unit "+--+- ++-", repetition is more
The coiling of individual this ends of the earth unit can complete the symmetrical coiling in the ends of the earth.
(3), using a positive ends of the earth structure and a reverse ends of the earth structure around making a ten six types of severe debility disease structures；
Reverse ends of the earth structure is introduced, wherein reverse ends of the earth structure, its arrangement ends of the earth Structural assignments phase (2) described with step
Instead, be "-++ -+--+", with ten most basic six types of severe debility disease units of a positive ends of the earth and reverse ends of the earth composition "+--+- ++ --+
+ -+--+", the coiling of multiple this ten six types of severe debility diseases unit of repetition can complete the symmetrical coiling of ten six types of severe debility diseases.
(4), using ten six types of severe debility disease structure of a forward direction and a reverse ten six types of severe debility diseases structure around making 30 two-level structures,
As shown in Figure 5.
Reverse ten six types of severe debility diseases structure is introduced, wherein reverse ten six types of severe debility diseases structure, its arrangement and ten (3) described six types of severe debility disease structures of step
Arrangement conversely, for "-++ -+-- ++ --+- ++-", most basic three are constituted with ten six types of severe debility disease of forward direction and reverse ten six types of severe debility disease
12 pole units "+--+- ++ -- ++ -+--+- ++ -+-- ++ --+- ++-", the coiling of multiple this 32 pole unit of repetition
Complete 32 extremely symmetrical coilings.
Fig. 6 is the novel optical fiber ring coiling scheme schematic diagram of this intellectual achievement invention.30 two-level structure is by multiple
Infinitesimal composition with the effect of temperature error self-compensating, the infinitesimal is cross arrangement mode.The circle of two kinds of colors point in figure
Dai Biao not live apart the optical fiber of optical fiber midpoint both sides.This kind of schematic diagram for listing 32 layers.From macroscopically see 32 layers by two arrange
Contrary " ten six types of severe debility diseases " unit composition, "+,-" below Fig. 6 number characterize the arrangement of two ten six types of severe debility disease units.More by perhaps on microcosmic
Many infinitesimals with compensation function are constituted.(in the figure region drawn a circle to approve by upper left side dotted line is this infinitesimal).The arrangement side of this infinitesimal
Formula can be also adjusted according to concrete asymmetric temperature field.
To verify inhibitory action of this intellectual achievement to optical fiber loop temperature error, discrete optical fiber loop has been refined first
The mathematical model of temperature SHUPE error.
General optical fiber loop SHUPE error variance mathematical modeies
When ambient temperature changes, optical fiber loop can produce thermic nonreciprocity SHUPE effects, when light beam is propagating
Constant beta (z) by the Phase delay that the optical fiber of a length of L is produced is：
Wherein β0=2 π/λ0It is the propagation constant in vacuum, n (z) represents the refractive index away from optical fiber initiating terminal length for z.When
During variation of ambient temperature, the thermal coefficient of expansion of the refractive index and medium of optical fiber core material can change, so as to affect light wave
The phase place of propagation：
Effective refractive indexs of the n for optical fiber in formula (2),Be temperature coefficient its size of refractive index be 1.35 × 10-5,
α is the refractive index coefficient of expansion, and △ T (z) expressions are along optical fiber and away from the Temperature Distribution change that its initiating terminal distance is the point at z
Amount.Because α n ratiosLittle one to two order of magnitude, often ignores the impact of α n.Due to SHUPE errors in optical fibre gyro
The thermic nonreciprocity angular speed error for causing is：
In formula, average diameters of the D for optical fiber loop；Total lengths of the L for optical fiber；N represents the local refractive index of optical fiber loop；Represent Cooling rate of the optical fiber z points in t；L-2z then represent z point optical fiber relative to optical fiber loop midpoint position because
Son.If the total P layers of optical fiber loop, every layer of number of turn is Q circles, therefore length can be equivalent to altogether by PQ circles for the optical fiber loop of L
Optical fiber is constituted.If the coordinate length of the i-th circle optical fiber start position opposed optical fibers ring one end (setting A ends) starting point is as li, the i-th circle
The length of optical fiber is dli, then coordinate position of the end point of the i-th circle optical fiber away from optical fiber loop A ends is li+dli, respectively by I circles
The starting point coordinate of optical fiber substitutes into formula (3), can obtain being accurate to the SHUPE error thermic output angles rate error expression of circle
Formula：
(L-2l in above formulai-dli)dliRepresent the location factor of this circle optical fiber.It is by formula (4), each in optical fiber loop
The difference of the circle fiber position factor depends primarily on the difference of ring winding method.
Optical fiber loop finite element heat transfer model is established at the same time
In its model, each component parameter is as shown in the table.
The emulation optical fiber loop each component thermal conduction study parameter of table 1
The discrete models of optical fiber loop temperature error and physical model are combined and both can be drawn in identical
Under temperature conditionss, the inhibition of the optical fiber loop of different coiling schemes to temperature error.
Simulation result is as shown in table 2.
| Coiling scheme | The emulation normalization result of temperature error |
| Quadrupole symmetrical winding | 1 |
| The symmetrical winding in the ends of the earth | 50% |
| The symmetrical winding of ten six types of severe debility diseases | 20% |
| Winding of the patent of the present invention with compensation infinitesimal | 5% |
More effectively can be carried using the new winding with compensation infinitesimal that this intellectual achievement is invented as can be seen from Table 2
Rise the inhibition to temperature error of optical fiber loop.And due to can arbitrarily change the distributing order of infinitesimal, can be directed to
Property asymmetric thermal field is carried out optical fiber loop internal optical fiber arrangement design, optical fiber loop can be lifted to a greater extent non-right
Temperature performance under the conditions of title temperature field.
Claims (8)
1. a kind of winding method of multipolarization optical fibre gyro ring, it is characterised in that：Comprise the following steps：
(1), one quaternary structure of coiling；
(2), using a positive quaternary structure and a reverse quaternary structure around making an ends of the earth structure；
(3), using a positive ends of the earth structure and a reverse ends of the earth structure around making a ten six types of severe debility disease structures；
(4), using ten six types of severe debility disease structure of a forward direction and a reverse ten six types of severe debility diseases structure around making 30 two-level structures.
2. the winding method of a kind of multipolarization optical fibre gyro ring according to claim 1, it is characterised in that：Step (1) institute
The concrete grammar of one quaternary structure of coiling stated is：A piece continuous optical fiber from the beginning of its midpoint, distinguished by the optical fiber of both sides
It is wound on two different point tow wheels, the optical fiber on point tow wheel A is used for each circle of ground floor in coiling ring, on point tow wheel B
Optical fiber be used for the second layer of coiling ring, the second layer is identical with the direction of ground floor, after the completion of second layer coiling, still using this
The optical fiber divided on tow wheel B, then coiling third layer optical fiber in opposite direction；Subsequently, recycle the optical fiber on point tow wheel A, coiling this
The 4th layer of ring, its coiling direction is identical with third layer, and so, the optical fiber of optical fiber midpoint side is used to completing ground floor and the
The coiling of four layers of each circle optical fiber, and the optical fiber of opposite side is used to complete the coiling of two, three two-layers, in this manner the four of coiling
Layer optical fiber is commonly known as one " quadrupole ", if representing the optical fiber of optical fiber midpoint both sides with "+" and "-" respectively, this is quadrupole
Structure be "+--+", quadrupole symmetrical winding based on this quadrupole unit, the multiple quadrupole coilings of repetition.
3. the winding method of a kind of multipolarization optical fibre gyro ring according to claim 1, it is characterised in that：Step (2) institute
The concrete grammar of one ends of the earth structure of coiling stated is：Reverse quaternary structure is introduced, wherein reverse quaternary structure, its arrangement and step
Rapid (1) described quaternary structure arrangement is conversely, for "-++-"；It is quadrupole with a forward direction and a reverse quadrupole composition is most basic
Ends of the earth unit "+--+- ++-", the coiling of multiple this ends of the earth unit of repetition can complete the symmetrical coiling in the ends of the earth.
4. the winding method of a kind of multipolarization optical fibre gyro ring according to claim 1, it is characterised in that：Step (3) institute
The concrete grammar of one ten six types of severe debility disease structure of the coiling stated is：Introduce reverse ends of the earth structure, wherein reverse ends of the earth structure, its arrangement with
The (2) described ends of the earth Structural assignments of step conversely, for "-++ -+--+", with a positive ends of the earth and a reverse ends of the earth composition most
Ten six types of severe debility disease units substantially "+--+- ++ -- ++ -+--+", the coiling of multiple this ten six types of severe debility diseases unit of repetition can complete ten six types of severe debility diseases pair
Claim coiling.
5. the winding method of a kind of multipolarization optical fibre gyro ring according to claim 1, it is characterised in that：Step (4) institute
The concrete grammar of one 30 two-level structure of coiling stated is：Reverse ten six types of severe debility diseases structure is introduced, wherein reverse ten six types of severe debility diseases structure, its
Arrangement with ten (3) described six types of severe debility disease Structural assignments of step conversely, for "-++ -+-- ++ --+- ++-", with ten six types of severe debility disease of forward direction and
One reverse ten six types of severe debility disease constitute most basic 32 pole units "+--+- ++ -- ++ -+--+- ++ -+-- ++ --+- ++-", repeat
The coiling of multiple this 32 pole unit can complete 32 extremely symmetrical coilings.
6. the winding method of a kind of multipolarization optical fibre gyro ring according to claim 1, it is characterised in that：Step (4) institute
30 two-level structures stated are made up of multiple infinitesimals with the effect of temperature error self-compensating, and the infinitesimal is cross arrangement side
Formula.
7. the multipolarization optical fibre gyro ring of the winding method of the multipolarization optical fibre gyro ring described in a kind of employing claim 1
Winding structure, it is characterised in that：Including multiple basic 32 pole units, each 32 pole unit is by a forward direction 16
Pole structure and a reverse ten six types of severe debility diseases structure are constituted, its Structural assignments for "+--+- ++ -- ++ -+--+- ++ -+-- ++ --+-+
+-”。
8. the winding structure of a kind of multipolarization optical fibre gyro ring according to claim 7, it is characterised in that：Described three
Optical fiber loop is divided into multiple infinitesimals with the effect of temperature error self-compensating using cross arrangement mode by ten two-level structures.
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| CN112504259A (en) * | 2020-12-18 | 2021-03-16 | 重庆华渝电气集团有限公司 | Optical fiber ring winding method with bidirectional temperature inhibition effect |
| CN117383820A (en) * | 2023-10-25 | 2024-01-12 | 重庆微敏科技有限公司 | Method, device and medium for winding frameless optical fiber |
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| CN107860380A (en) * | 2017-10-30 | 2018-03-30 | 中国电子科技集团公司第四十六研究所 | A kind of high-precision polarization maintaining optical fibre ring winding method |
| CN108168576A (en) * | 2017-12-15 | 2018-06-15 | 中国船舶重工集团公司第七0七研究所 | One kind is used for the symmetrical coiling method of optical fibre gyro ring tail optical fiber |
| CN110160556A (en) * | 2019-05-17 | 2019-08-23 | 中北大学 | A kind of skeleton of optical fibre gyro sensitive line ring and the sub- winding of symmetrical chiasma |
| CN110160556B (en) * | 2019-05-17 | 2023-01-24 | 中北大学 | Framework and symmetrical cross winding method of fiber-optic gyroscope sensitive coil ring |
| CN111220140A (en) * | 2020-02-17 | 2020-06-02 | 北京航空航天大学 | Cross sixteen-pole symmetric looping method for ultrahigh-precision fiber-optic gyroscope |
| CN112504259A (en) * | 2020-12-18 | 2021-03-16 | 重庆华渝电气集团有限公司 | Optical fiber ring winding method with bidirectional temperature inhibition effect |
| CN112504259B (en) * | 2020-12-18 | 2022-07-01 | 重庆华渝电气集团有限公司 | Optical fiber ring winding method with bidirectional temperature inhibition effect |
| CN117383820A (en) * | 2023-10-25 | 2024-01-12 | 重庆微敏科技有限公司 | Method, device and medium for winding frameless optical fiber |
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