CN202869489U - Low-stress optical fiber loop framework - Google Patents
Low-stress optical fiber loop framework Download PDFInfo
- Publication number
- CN202869489U CN202869489U CN 201220504840 CN201220504840U CN202869489U CN 202869489 U CN202869489 U CN 202869489U CN 201220504840 CN201220504840 CN 201220504840 CN 201220504840 U CN201220504840 U CN 201220504840U CN 202869489 U CN202869489 U CN 202869489U
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- Prior art keywords
- optical fiber
- ring flange
- skeleton
- fiber optic
- stress
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Abstract
The utility model relates to a design scheme of a low-stress optical fiber loop, and particularly relates to a fiber loop framework capable of reducing the stress of an optical fiber close to the end face of a framework flange. The low-stress optical fiber loop framework is provided with a flange groove, wherein the inner diameter of the flange groove is the same with the inner diameter of the optical fiber loop, the outer diameter of the flange groove is bigger than that of the optical fiber loop, and after the optical fiber is wound, the flange groove is filled with a cure adhesive. According to the low-stress optical fiber loop framework, the problem of stress saltation of the optical fiber close to the side wall of the flange due to different dilation coefficients of the framework and the cure adhesive under a temperature-varying environment.
Description
Technical field
The utility model relates to a kind of low stress fiber optic loop design proposal, especially a kind of fiber optic loop skeleton that reduces near skeleton ring flange end face fiber stress.
Background technology
Fiber optic loop is the core devices of optical fibre gyro, has the function of sensitive angular, and the performance of fiber optic loop has determined the performance of optical fibre gyro to a great extent, especially full temperature, vibration performance.
The high-performance optical fiber ring requires internal stress distribution even, but the actual rings skeleton there are differences with the expansion coefficient that solidifies glue, causes under varying temperature environment, is subject to larger stress near the optical fiber of ring skeleton ring flange end face.
Patent focuses mostly in the selection of skeleton low-expansion material both at home and abroad at present, does not have the similar report that improves to reduce close skeleton ring flange end face fiber stress by the ring skeleton structure.
The utility model content
The utility model purpose is: a kind of fiber optic loop skeleton that can effectively reduce near skeleton ring flange end face fiber stress is provided.
The technical solution of the utility model is as follows: a kind of low stress fiber optic loop skeleton, it offers the ring flange groove, and ring flange groove internal diameter is identical with the optical fiber loop internal diameter, and ring flange groove external diameter is greater than the optical fiber loop external diameter, behind the Optical Fiber Winding, and be marked with curing glue in the groove of ring flange.
Solidify the glue face smooth and contour with ring skeleton ring flange end face.
The ring flange groove is one-side gaining or double surface grooving.
The ring flange groove is circular trough or oval groove.
The utlity model has following advantage:
1, the ring skeleton ring flange grooved faces scheme of the utility model employing can reduce near skeleton ring flange end face optical fiber under varying temperature environment, because the extra-stress of skeleton and the different introducings of curing glue expansion coefficient;
2, for the full skeleton structure of sandblast, take off Half-edge Structure, utilize the utility model to solve polarization-maintaining fiber coil end face and the problem that sandblast ring skeleton directly contacts, when improving the fiber optic loop vibration performance, guaranteed the alternating temperature performance of fiber optic loop.
Description of drawings
Fig. 1 is utility model low stress fiber optic loop skeleton sectional view;
Fig. 2 is the sectional view of utility model low stress fiber optic loop skeleton;
Wherein Reference numeral is: the 1-skeleton, 2-solidifies glue, 3-polarization maintaining optical fibre, 4-groove.
Embodiment
The utility model is described in further detail below by specific embodiment:
Please consult simultaneously Fig. 1 and Fig. 2, wherein, Fig. 1 is the utility model low stress fiber optic loop skeleton sectional view, and Fig. 2 is the sectional view of utility model low stress fiber optic loop skeleton.The utility model low stress fiber optic loop skeleton 1 offers the ring flange groove, and ring skeleton ring flange fluting size is determined in its inside and outside footpath according to fiber optic loop, and ring flange fluting internal diameter is identical with the optical fiber loop internal diameter, and ring flange fluting external diameter is greater than the optical fiber loop external diameter.Polarization maintaining optical fibre 3 is wound between the ring flange according to four extremely symmetrical, the methods such as the ends of the earth is symmetrical, quadrature coiling, and solidifies glue 2 in the groove 4 interior injections of ring flange, to be cured operation.And the fiber optic loop skeleton after solidifying carried out pre-service, make that to solidify the glue face smooth and contour with fiber optic loop skeleton ring flange end face.
During actual design, according to fiber optic loop design needs, determine ring skeleton ring flange fluting external diameter and the degree of depth, the fluting internal diameter should mate around ring periphery diameter.And according to the mode of ring flange grooved faces, the glue cushion is solidified in controlled adding, reduces near skeleton ring flange end face fiber stress.In addition, according to actual needs, the ring flange of the utility model low stress fiber optic loop skeleton fluting is various informative, can select the single, double surface fluting, circular, oval fluting.Inner and outer diameter and the degree of depth of fluting, visual fiber optic loop design different and change.
The utility model low stress fiber optic loop skeleton can reduce near skeleton ring flange end face optical fiber under varying temperature environment, because skeleton and the extra-stress of solidifying the different introducings of glue expansion coefficient, be applicable to four extremely symmetrical windings, the symmetrical winding in the ends of the earth, quadrature winding etc., and be applicable to online gluing, impregnation, the modes such as glue spraying have larger actual application value.
Claims (4)
1. a low stress fiber optic loop skeleton is characterized in that, offers the ring flange groove, and ring flange groove internal diameter is identical with the optical fiber loop internal diameter, and ring flange groove external diameter behind the Optical Fiber Winding, and is marked with curing glue greater than the optical fiber loop external diameter in the groove of ring flange.
2. low stress fiber optic loop skeleton according to claim 1 is characterized in that, solidifies the glue face smooth and contour with ring skeleton ring flange end face.
3. low stress fiber optic loop skeleton according to claim 1 is characterized in that, the ring flange groove is one-side gaining or double surface grooving.
4. low stress fiber optic loop skeleton according to claim 1 is characterized in that, the ring flange groove is circular trough or oval groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220504840 CN202869489U (en) | 2012-09-28 | 2012-09-28 | Low-stress optical fiber loop framework |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220504840 CN202869489U (en) | 2012-09-28 | 2012-09-28 | Low-stress optical fiber loop framework |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202869489U true CN202869489U (en) | 2013-04-10 |
Family
ID=48036203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220504840 Expired - Fee Related CN202869489U (en) | 2012-09-28 | 2012-09-28 | Low-stress optical fiber loop framework |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202869489U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251710A (en) * | 2013-06-28 | 2014-12-31 | 北京自动化控制设备研究所 | Preparation method of sensing ring for inhibiting optic fiber gyroscope temperature drift |
| CN106643687A (en) * | 2016-12-30 | 2017-05-10 | 陕西宝成航空仪表有限责任公司 | Elliptical fiber ring skeleton for fiber gyroscope |
-
2012
- 2012-09-28 CN CN 201220504840 patent/CN202869489U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251710A (en) * | 2013-06-28 | 2014-12-31 | 北京自动化控制设备研究所 | Preparation method of sensing ring for inhibiting optic fiber gyroscope temperature drift |
| CN106643687A (en) * | 2016-12-30 | 2017-05-10 | 陕西宝成航空仪表有限责任公司 | Elliptical fiber ring skeleton for fiber gyroscope |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20180928 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |