CN109633818B - Optical fiber melting point protection method and device for optical fiber gyroscope - Google Patents
Optical fiber melting point protection method and device for optical fiber gyroscope Download PDFInfo
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- CN109633818B CN109633818B CN201811501154.3A CN201811501154A CN109633818B CN 109633818 B CN109633818 B CN 109633818B CN 201811501154 A CN201811501154 A CN 201811501154A CN 109633818 B CN109633818 B CN 109633818B
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- optical fiber
- melting point
- nylon tube
- supporting rod
- top end
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/255—Splicing of light guides, e.g. by fusion or bonding
- G02B6/2558—Reinforcement of splice joint
Abstract
The invention relates to a method and a device for protecting an optical fiber melting point of an optical fiber gyroscope, belonging to the technical field of optical fiber sensing and navigation auxiliary devices. The method comprises the steps of placing the melting point of the optical fiber in a nylon tube, and filling ultraviolet glue at the melting point of the optical fiber in the nylon tube for protection. Two sides of a base of the device are provided with symmetrical mounting holes, and the mounting hole at one side is provided with an adjacent supporting rod B and an adjacent supporting rod C through a knob; a pad column is arranged on the side surface of the top end of the supporting rod B, a groove is formed by the pad column and the adjacent side of the top end of the supporting rod B, a blade is placed in the groove, the tip end of the blade is positioned in the middle of the groove, and a bolt penetrates through the pad column to fix the blade on the top end of the supporting rod B; the top end of the supporting rod C is rotatably connected with the magnifier through a rotating rod A; a supporting rod A is installed in a mounting hole in the other side of the base through a knob, and the top end of the supporting rod A is connected with an ultraviolet lamp through a rotating rod B. The method and the device have the advantages of reliable protection, light weight and small occupied space, and meet the assembly requirements of the optical fiber pigtail of the optical device of the small-sized optical fiber gyroscope.
Description
Technical Field
The invention relates to a method and a device for protecting an optical fiber melting point of an optical fiber gyroscope, belonging to the technical field of optical fiber sensing and navigation auxiliary devices.
Background
The optical fiber optical path system is mainly formed by mutually welding optical devices through respective optical fiber tail fibers, and common optical fiber melting point protection comprises heat-shrinkable sleeve protection, ultraviolet glue coating protection and metal tube or glass tube packaging. The small-sized optical fiber gyroscope has small integral volume and small inner and outer diameters of an optical fiber loop coil, and the curvature radius of the tail fiber of the device coiled in the optical path assembly process is smaller, so that the tail fiber bears large stress; the common melting point protection mode is adopted, so that the occupied space of the melting point is large, the bearable stress effect of the melting point is small, the optical fiber light path is easy to break, the overall quality of the optical fiber light path is influenced, and the production and assembly process and efficiency of the ground optical fiber gyroscope are greatly influenced.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide the method and the device for protecting the optical fiber melting point of the optical fiber gyroscope, wherein the method and the device are reliable in protection, light, small in occupied space and small in size, and can meet the requirements of assembling the optical fiber pigtail of the optical device of the small optical fiber gyroscope.
In order to achieve the purpose of the invention, the following technical scheme is provided.
A method for protecting the optical fiber melting point of an optical fiber gyroscope is characterized in that the optical fiber melting point is placed in a nylon tube, and ultraviolet glue is filled at the position of the optical fiber melting point in the nylon tube for protection.
The method comprises the following specific steps:
1) selecting a nylon tube with an outer diameter larger than that of the optical fiber, and cutting a gap on the nylon tube; cutting a section of nylon tube which is slightly longer than the melting point length of the optical fiber and is provided with a cut open for fixing;
2) and (3) putting the melting point of the well-welded optical fiber into the split nylon tube, fixing the optical fibers at two ends of the melting point of the optical fiber, observing the melting point of the optical fiber by using a magnifier, completely wrapping the melting point of the optical fiber in the nylon tube, filling ultraviolet glue in the nylon tube, observing the nylon tube by using the magnifier, opening an ultraviolet lamp to irradiate the nylon tube until the ultraviolet glue in the nylon tube is completely solidified, and taking down the nylon tube to obtain the optical fiber with the well-protected melting point of the optical fiber.
A fiber optic gyroscope fiber melting point protection device is applicable to the fiber optic gyroscope fiber melting point protection method; the device comprises a base, a support rod A, a rotating rod A, a magnifier, an ultraviolet lamp, a support rod B, a cushion column, a blade, a support rod C and a rotating rod B.
The two sides of the base are provided with symmetrical mounting holes, the mounting hole at one side of the base is provided with a support rod B and a support rod C which are adjacent through a knob, and the support rod B and the support rod C can rotate around the knob; a pad column is arranged on the side face of the top end of the supporting rod B, a groove is formed by the pad column and the adjacent side of the top end of the supporting rod B, the depth and the width of the groove are the same as the outer diameter of the nylon pipe, a blade is placed in the groove, the tip of the blade is positioned in the middle of the groove, and the blade is fixed to the top end of the supporting rod B by penetrating through the pad column through a bolt; the top end of the supporting rod C is rotatably connected with a magnifier through a rotating rod A, and the magnifier can be driven to adjust the angle and the position; a supporting rod A is installed in a mounting hole in the other side of the base through a knob, the supporting rod A can rotate around the knob, and the top end of the supporting rod A is connected with an ultraviolet lamp through a rotating rod B and can drive the ultraviolet lamp to adjust the angle and the position.
The invention relates to an application method of a fiber-optic gyroscope fiber melting point protection device, which comprises the following steps:
1) selecting a nylon tube with an outer diameter larger than the outer diameter of the optical fiber, placing one end head of the nylon tube at the tip of a blade in a groove between the support rod B and the cushion column, lightly pressing the nylon tube in the groove with one hand, and manually pulling and stretching the end head of the nylon tube with the other hand to obtain a section of nylon tube with a split gap; cutting a section of split nylon tube which is slightly longer than the melting point length of the optical fiber, and fixing the cut nylon tube on the base by using a fixing piece;
2) the fusion spliced optical fiber melting point is placed in the dissected nylon tube, optical fibers at two ends of the optical fiber melting point are fixed on the base through the fixing parts, the magnifier is opened to observe the optical fiber melting point and completely wrap the nylon tube, ultraviolet glue is filled in the nylon tube, the magnifier is used to observe that no bubble exists in the nylon tube, the ultraviolet light is opened to irradiate the ultraviolet glue in the nylon tube until the ultraviolet glue is completely solidified, and the optical fiber is lightly taken down to obtain the optical fiber with the well protected optical fiber melting point.
The fixing piece is a structure which can be flexibly fixed and detached in the prior art, such as a double-sided adhesive tape.
Advantageous effects
1. The invention provides a method for protecting the optical fiber melting point of an optical fiber gyroscope, which has the advantages of reliable and portable protection of the optical fiber melting point, small occupied space and small volume and meets the assembly requirement of an optical fiber pigtail of an optical device of the optical fiber gyroscope.
2. The invention provides a fiber-optic gyroscope fiber melting point protection device, which integrates a blade, a magnifier and an ultraviolet lamp required by the fiber-optic gyroscope fiber melting point protection method, so that the method is simpler and more convenient to operate.
3. The invention provides a method and a device for protecting the optical fiber melting point of an optical fiber gyroscope, which are particularly suitable for protecting the optical fiber melting point of a small-sized optical fiber gyroscope and can also be widely applied to the melting point protection of other optical fiber optical paths.
Drawings
Fig. 1 is a schematic perspective view of an optical fiber melting point protection device of an optical fiber gyroscope in an embodiment.
Fig. 2 is a partially enlarged view of the blade portion of fig. 1.
FIG. 3 is an enlarged view of a portion of the fiber of FIG. 1 at the melting point protection.
1-base, 2-strut A, 3-rotating rod A, 4-magnifying glass, 5-ultraviolet lamp, 6-fixing piece, 7-nylon tube, 8-optical fiber, 9-strut B, 10-cushion column, 11-blade, 12-strut C, 13-rotating rod B
Detailed Description
The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.
Example 1
A fiber-optic gyroscope fiber melting point protection device is shown in figure 1 and comprises a cylindrical base 1, a support rod A2, a rotating rod A3, a magnifier 4, an ultraviolet lamp 5, a support rod B9, a pad column 10, a blade 11, a support rod C12 and a rotating rod B13.
Wherein, symmetrical mounting holes are arranged at two sides of the base 1, the mounting hole at one side of the base 1 is provided with a support rod B9 and a support rod C12 which are adjacent through a knob, and the support rod B9 and the support rod C12 can rotate around the knob; as shown in fig. 2, a pad column 10 is arranged on the side surface of the top end of the supporting rod B9, a groove is formed on the adjacent side of the top end of the pad column 10 and the supporting rod B9, the depth and the width of the groove are the same as the outer diameter of the nylon tube 7 and are 0.9mm, a blade 11 is placed in the groove, the tip of the blade 11 is positioned in the middle of the groove, and the blade 11 is fixed on the top end of the supporting rod B9 by penetrating the pad column 10 through a bolt; the top end of the supporting rod C12 is rotatably connected with a magnifier 4 through a rotating rod A3, and the magnifier 4 can be driven to adjust the angle and the position; a supporting rod A2 is installed in the installation hole in the other side of the base 1 through a knob, the supporting rod A2 can rotate around the knob, the top end of the supporting rod A2 is connected with an ultraviolet lamp 5 through a rotating rod B13, and the ultraviolet lamp 5 can be driven to adjust the angle and the position.
A fiber-optic gyroscope fiber-optic melting point protection method is completed by adopting the device of the embodiment and comprises the following steps:
1) selecting a transparent nylon tube 7 with the outer diameter of 0.9mm larger than that of the optical fiber 8, placing one end of the nylon tube 7 at the tip of a blade 11 in a groove between a support rod B9 and a cushion column 10, lightly pressing the nylon tube 7 in the groove with one hand, and manually pulling the end of the nylon tube 7 with the other hand to obtain a section of nylon tube 7 with a slit; cutting a section of split nylon tube 7 which is slightly longer than the melting point length of the optical fiber, and fixing the nylon tube on the surface of the base 1 by using a fixing piece 6 double faced adhesive tape;
2) as shown in fig. 3, the fusion-spliced optical fiber melting point is placed in the split nylon tube 7, optical fibers 8 at two ends of the optical fiber melting point are fixed on the base 1 by the fixing parts 6, the magnifier 4 is opened to observe that the optical fiber melting point is completely wrapped in the nylon tube 7, the nylon tube 7 is filled with ultraviolet glue, the magnifier 4 is used to observe that no bubble exists in the nylon tube 7, the ultraviolet lamp 5 is opened to irradiate the ultraviolet glue in the nylon tube 7 until the ultraviolet glue is completely solidified, and the optical fibers 8 with the well-protected optical fiber melting point are obtained after light taking off.
Claims (3)
1. The utility model provides a fiber optic gyroscope optic fibre melting point protection device which characterized in that: the device is suitable for the protection method for the optical fiber melting point of the optical fiber gyroscope as follows: placing the melting point of the optical fiber in a nylon tube (7), and filling ultraviolet glue at the melting point of the optical fiber in the nylon tube (7) for protection;
the device comprises a base (1), a support rod A (2), a rotating rod A (3), a magnifier (4), an ultraviolet lamp (5), a support rod B (9), a cushion column (10), a blade (11), a support rod C (12) and a rotating rod B (13);
symmetrical mounting holes are formed in two sides of the base (1), and a support rod B (9) and a support rod C (12) which are adjacent to each other are mounted in the mounting hole in one side of the base (1) through a knob; a pad column (10) is arranged on the side face of the top end of the supporting rod B (9), a groove is formed by the pad column (10) and one side of the top end of the supporting rod B (9) which is adjacent to the top end of the supporting rod B, the depth and the width of the groove are the same as the outer diameter of the nylon tube (7), a blade (11) is placed in the groove, the tip of the blade (11) is positioned in the middle of the groove, and the blade (11) is fixed to the top end of the supporting rod B (9) by penetrating through the pad column (10; the top end of the supporting rod C (12) is rotationally connected with a magnifier (4) through a rotating rod A (3); a supporting rod A (2) is installed in a mounting hole on the other side of the base (1) through a knob, and the top end of the supporting rod A (2) is connected with an ultraviolet lamp (5) through a rotating rod B (13).
2. The fiber-optic melting point protection device of the fiber-optic gyroscope according to claim 1, characterized in that: the method for protecting the optical fiber melting point of the optical fiber gyroscope comprises the following steps:
1) selecting a nylon tube (7) with an outer diameter larger than that of the optical fiber (8), and splitting a gap on the nylon tube (7); cutting a nylon tube (7) which is slightly longer than the melting point length of the optical fiber and is provided with a cut open for fixing;
2) the fusion spliced optical fiber melting point is placed in a split nylon tube (7), optical fibers (8) at two ends of the optical fiber melting point are fixed, a magnifier (4) is used for observing that the optical fiber melting point is completely wrapped in the nylon tube (7), the nylon tube (7) is filled with ultraviolet glue, the magnifier (4) is used for observing that no bubble exists in the nylon tube (7), an ultraviolet lamp (5) is opened to irradiate the nylon tube (7) until the ultraviolet glue in the tube is completely solidified, and the optical fiber (8) after the optical fiber melting point is protected is obtained after the ultraviolet lamp (5) is taken down.
3. The application method of the fiber-optic gyroscope fiber melting point protection device as claimed in claim 1 or 2, characterized in that: the method comprises the following steps:
1) selecting a nylon tube (7) with an outer diameter larger than that of the optical fiber (8), placing one end of the nylon tube (7) at the tip of a blade (11) in a groove between a support rod B (9) and a cushion column (10), lightly pressing the nylon tube (7) in the groove with one hand, and manually pulling the end of the nylon tube (7) with the other hand to obtain a section of nylon tube (7) with a split gap; cutting a section of split nylon tube (7) which is slightly longer than the melting point length of the optical fiber, and fixing the cut nylon tube on the base (1) by using a fixing piece (6);
2) the fusion spliced optical fiber melting point is placed in a split nylon tube (7), optical fibers (8) at two ends of the optical fiber melting point are fixed on a base (1) through fixing pieces (6), a magnifier (4) is opened to observe the optical fiber melting point and completely wrap the nylon tube (7), the nylon tube (7) is filled with ultraviolet glue, the magnifier (4) is used to observe the nylon tube (7) without bubbles, an ultraviolet lamp (5) is opened to irradiate the ultraviolet glue in the nylon tube (7) until the ultraviolet glue is completely solidified, and the optical fiber (8) with the protected optical fiber melting point is obtained after the ultraviolet lamp (5) is lightly taken down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811501154.3A CN109633818B (en) | 2018-12-10 | 2018-12-10 | Optical fiber melting point protection method and device for optical fiber gyroscope |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811501154.3A CN109633818B (en) | 2018-12-10 | 2018-12-10 | Optical fiber melting point protection method and device for optical fiber gyroscope |
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| Publication Number | Publication Date |
|---|---|
| CN109633818A CN109633818A (en) | 2019-04-16 |
| CN109633818B true CN109633818B (en) | 2020-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811501154.3A Active CN109633818B (en) | 2018-12-10 | 2018-12-10 | Optical fiber melting point protection method and device for optical fiber gyroscope |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8103144B1 (en) * | 2007-05-29 | 2012-01-24 | Agiltron, Inc. | Method and apparatus for mechanically splicing optic fibers |
| CN102902008A (en) * | 2011-07-27 | 2013-01-30 | 三菱电线工业株式会社 | Polymer clad fiber and manufacturing method thereof |
| CN107632345A (en) * | 2017-08-23 | 2018-01-26 | 中北大学 | Optical fiber macrobend coupled structure and its processing method based on uv-curable glue |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7410308B2 (en) * | 2006-01-09 | 2008-08-12 | All Optronics, Inc. | Fiber optic cable splice |
| CN103500972B (en) * | 2013-09-03 | 2017-03-08 | 国家电网公司 | The sealing strain clamp of carbon fiber complex core optic fibre wire |
| CN104931190B (en) * | 2015-07-16 | 2018-03-09 | 吉林大学 | A kind of fiber bragg grating osmometer glue-free mechanical sealing structure |
-
2018
- 2018-12-10 CN CN201811501154.3A patent/CN109633818B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8103144B1 (en) * | 2007-05-29 | 2012-01-24 | Agiltron, Inc. | Method and apparatus for mechanically splicing optic fibers |
| CN102902008A (en) * | 2011-07-27 | 2013-01-30 | 三菱电线工业株式会社 | Polymer clad fiber and manufacturing method thereof |
| CN107632345A (en) * | 2017-08-23 | 2018-01-26 | 中北大学 | Optical fiber macrobend coupled structure and its processing method based on uv-curable glue |
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| CN109633818A (en) | 2019-04-16 |
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