CN213022234U - Optical fiber ring temperature performance testing device - Google Patents
Optical fiber ring temperature performance testing device Download PDFInfo
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- CN213022234U CN213022234U CN202021302918.9U CN202021302918U CN213022234U CN 213022234 U CN213022234 U CN 213022234U CN 202021302918 U CN202021302918 U CN 202021302918U CN 213022234 U CN213022234 U CN 213022234U
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- optical fiber
- fiber ring
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Abstract
The utility model provides an optical fiber ring temperature performance testing device, which mainly comprises an upper shell, a lower shell, a copper column, a bracket, an airtight socket, an O-shaped sealing ring, a temperature sensor and a nylon tube, wherein, the peripheral side wall of the lower shell is distributed with an air inlet, an air outlet, an airtight socket mounting hole and an optical fiber outlet hole; the bracket is fixed on the bottom surface of the lower shell through a screw and a copper column; the upper surface of the bracket is provided with a groove, and the nylon tube is glued in the groove; temperature sensors are uniformly distributed on the circumference of the bracket, and the optical fiber ring to be measured is fixed on the upper surface of the bracket; the upper shell and the lower shell are fixed through screws to form an airtight shell. The utility model discloses an airtight structure device fills into nitrogen gas, and optical fiber ring and external environment are kept apart to the physics to reduce the influence of factors such as temperature field external environment moisture, oxygen to optical fiber ring temperature sensitivity, consider the influence of temperature field change to optical fiber ring performance alone.
Description
Technical Field
The utility model belongs to the technical field of optical fiber sensing and navigation, concretely relates to optic fibre ring temperature capability test device.
Background
The fiber optic gyroscope obtains angular velocity information by detecting the phase difference of double-beam interference signals caused by the Sagnac effect, has the characteristics of large dynamic range, strong anti-interference capability, long service life, small volume, low cost and the like compared with the traditional electromechanical gyroscope, and plays an important role in the fields of national defense construction, national economy and the like. The optical fiber ring of the optical fiber gyroscope sensitive device is greatly influenced by temperature and geomagnetic interference, and the generated nonreciprocal phase shift causes large offset error so as to influence the gyroscope precision, so that the research work of the action mechanism of the optical fiber ring on the optical fiber gyroscope by a temperature field is always an important link for the technical development of the optical fiber gyroscope, particularly the high-precision optical fiber gyroscope.
SUMMERY OF THE UTILITY MODEL
In view of this, for the influence mechanism of this environmental factor of further research temperature to optical fiber ring working property, improve high accuracy fiber-optic gyroscope's stability, the utility model provides an optical fiber ring temperature capability test device.
The utility model provides a technical scheme that its technical problem adopted is:
a temperature performance testing device for an optical fiber ring mainly comprises an upper shell, a lower shell, a copper column, a support, an airtight socket, an O-shaped sealing ring, a temperature sensor and a nylon tube, wherein air inlet holes, air outlet holes, airtight socket mounting holes and optical fiber outlet holes are distributed on the peripheral side wall of the lower shell; the bracket is fixed on the bottom surface of the lower shell through a screw and a copper column; the upper surface of the bracket is provided with a groove, and the nylon tube is glued in the groove; temperature sensors are uniformly distributed on the circumference of the bracket, and the optical fiber ring to be measured is fixed on the upper surface of the bracket; the upper shell and the lower shell are fixed through screws to form an airtight shell;
the pin lead of the temperature sensor is connected with an external control circuit board through an airtight socket on the side wall of the lower shell;
the light fiber outlet hole on the lower shell is opposite to the nylon tube in the horizontal and height directions; the gap between the nylon tube and the light fiber outlet hole on the lower shell is filled with silicon rubber; when the tail fiber of the optical fiber ring passes through the tail end of the nylon tube, ultraviolet glue is filled in a gap between the tail fiber of the optical fiber ring and the tail end of the nylon tube; when the temperature performance of the optical fiber ring is measured, nitrogen is filled in the airtight shell.
Furthermore, the bracket of the utility model is made of polytetrafluoroethylene.
Advantageous effects
The utility model discloses an airtight structure device fills into nitrogen gas, and optical fiber ring and external environment are kept apart to the physics to reduce the influence of factors such as temperature field external environment moisture, oxygen to optical fiber ring temperature sensitivity, consider the influence of temperature field change to optical fiber ring performance alone.
Drawings
The present invention will be further explained with reference to the drawings and examples;
FIG. 1 is an external view of the optical fiber ring temperature performance testing device of the present invention;
FIG. 2 is a cross-sectional view of the optical fiber ring temperature performance testing apparatus of the present invention;
fig. 3 is a top view of the optical fiber ring temperature performance testing apparatus of the present invention after the upper case is removed.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention.
As shown in fig. 1-3, the optical fiber ring temperature performance testing device of the present invention mainly comprises an upper shell 1, a lower shell 2, a copper column 3, a support 4, an airtight socket 5, an O-shaped sealing ring 6, an optical fiber ring 7 and a transparent nylon tube 8 with an outer diameter of 0.9 mm; wherein, the peripheral side wall of the lower shell 2 is distributed with an air inlet, an air outlet, an airtight socket mounting hole and an optical fiber outlet hole, and the upper end of the flange of the lower shell 2 is provided with a groove for gluing an O-shaped sealing ring 6; the support 4 is made of polytetrafluoroethylene materials to reduce abrasion to the optical fiber ring 7, the support 4 is fixed on the bottom surface of the lower shell 2 through screws and copper columns 3, a groove with the depth and width of 1mm is formed in the upper surface of the support 4 and used for adhering nylon tubes 8, temperature sensors are uniformly distributed on the circumference of the support 4, and the optical fiber ring 7 is fixed on the upper surface of the support 4 through an adhesive tape; the upper case 1 and the lower case 2 are fixed by screws to form an airtight case.
The pin lead of the temperature sensor is connected with an external control circuit board through an airtight socket 5 on the side wall of the lower shell 2, and the temperature change of an optical fiber ring 7 in the airtight shell is monitored in real time.
The light fiber outlet hole on the lower shell 3 is opposite to the groove of the bracket 4 in the horizontal and height directions; the gap between the nylon tube 8 and the light fiber outlet hole on the lower shell 3 is filled with silicon rubber; when the tail fiber of the optical fiber ring 7 passes through the tail end of the nylon tube 8, ultraviolet glue is filled in the gap between the tail fiber of the optical fiber ring 7 and the tail end of the nylon tube 8. The tail fiber of the optical fiber ring 7 passes through the nylon protection tube 8 to be connected with the optical fiber gyro optical path device outside the airtight structure, so that a closed loop optical path system is formed.
And after the installation of the air-tight device is finished, and the ultraviolet glue and the sealing silicon rubber are solidified, nitrogen with the pressure of 0.3Pa is filled, the air inlet hole and the air outlet hole of the air-tight device are sealed by using a countersunk head screw and the sealing glue in time, and after the air tightness is verified, the performance test of the optical fiber ring performance and the temperature is carried out.
The utility model discloses an airtight structure realizes physics such as hydrone, oxygen among the optic fibre ring in the optic fibre top light path and the external environment air and keeps apart to the real-time detection optic fibre ring temperature behavior, to have certain practical value to optic fibre top temperature performance research.
In summary, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. 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 (2)
1. The device for testing the temperature performance of the optical fiber ring is characterized by mainly comprising an upper shell, a lower shell, a copper column, a support, an airtight socket, an O-shaped sealing ring, a temperature sensor and a nylon pipe, wherein air inlet holes, air outlet holes, airtight socket mounting holes and optical fiber outlet holes are distributed on the peripheral side wall of the lower shell; the bracket is fixed on the bottom surface of the lower shell through a screw and a copper column; the upper surface of the bracket is provided with a groove, and the nylon tube is glued in the groove; temperature sensors are uniformly distributed on the circumference of the bracket, and the optical fiber ring to be measured is fixed on the upper surface of the bracket; the upper shell and the lower shell are fixed through screws to form an airtight shell;
the pin lead of the temperature sensor is connected with an external control circuit board through an airtight socket on the side wall of the lower shell;
the light fiber outlet hole on the lower shell is opposite to the nylon tube in the horizontal and height directions; the gap between the nylon tube and the light fiber outlet hole on the lower shell is filled with silicon rubber; when the tail fiber of the optical fiber ring passes through the tail end of the nylon tube, ultraviolet glue is filled in a gap between the tail fiber of the optical fiber ring and the tail end of the nylon tube; when the temperature performance of the optical fiber ring is measured, nitrogen is filled in the airtight shell.
2. The apparatus for testing the temperature performance of an optical fiber ring according to claim 1, wherein the holder is made of polytetrafluoroethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021302918.9U CN213022234U (en) | 2020-07-06 | 2020-07-06 | Optical fiber ring temperature performance testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021302918.9U CN213022234U (en) | 2020-07-06 | 2020-07-06 | Optical fiber ring temperature performance testing device |
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| Publication Number | Publication Date |
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| CN213022234U true CN213022234U (en) | 2021-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021302918.9U Active CN213022234U (en) | 2020-07-06 | 2020-07-06 | Optical fiber ring temperature performance testing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116380032B (en) * | 2023-02-07 | 2023-08-18 | 中国船舶集团有限公司第七〇七研究所 | Optical fiber gyro and temperature self-compensation method thereof |
-
2020
- 2020-07-06 CN CN202021302918.9U patent/CN213022234U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116380032B (en) * | 2023-02-07 | 2023-08-18 | 中国船舶集团有限公司第七〇七研究所 | Optical fiber gyro and temperature self-compensation method thereof |
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