Gum dipping device and method for improving performance of optical fiber coil

A technology of optical fiber coils and dipping devices, which is applied in the direction of measuring devices, instruments, etc., can solve the problems of not forming products, staying, gaps, etc., and achieve the effects of reducing shrinkage stress, improving temperature stability and anti-vibration performance

Active Publication Date: 2015-10-21
JIANGXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, domestic research is still mostly in the laboratory stage, and no products hav

Method used

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  • Gum dipping device and method for improving performance of optical fiber coil
  • Gum dipping device and method for improving performance of optical fiber coil
  • Gum dipping device and method for improving performance of optical fiber coil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Add 100 parts of polysiloxane containing vinyl, 100 parts of dimethyl polysiloxane containing Si-H bond, and 1.6 parts of platinum catalyst into the beaker, put it on a high-strength magnetic stirrer and stir it for 10 minutes, and let it stand for 15 minutes Finally, put it in a vacuum defoaming box for 20 minutes, then transfer it to the glue container on the upper part of the dipping tank, and wait for 10 minutes to absorb the glue.

[0057] Place the optical fiber coil to be dipped in the bottom of the vacuum pressure impregnation tank, close the cover and seal it, turn on the vacuum pump and open the vacuum valve to vacuum the inside of the tank, when the vacuum reaches below 100Pa, continue to vacuum for 2 hours, and then open the upper connection The glue suction valve of the glue container, slowly suck the adhesive into the bottom of the tank until it completely submerges the optical fiber coil, close the glue suction valve, continue vacuuming the tank for 1 hour...

Embodiment 2

[0063] Add 50 parts of A polysiloxane containing vinyl groups, 50 parts of dimethylpolysiloxane containing Si-H bonds, and 0.8 parts of platinum catalyst into a beaker, place it on a high-intensity magnetic stirrer and stir it for 18 minutes, and let it stand After 13 minutes, put it in a vacuum degassing box for 16 minutes, then transfer it to the glue container on the upper part of the dipping tank, and wait for 8 minutes to absorb the glue.

[0064] Place the optical fiber coil to be dipped in the bottom of the vacuum pressure impregnation tank, close the cover and seal it, then turn on the vacuum pump and open the vacuum valve to vacuum the inside of the tank. When the vacuum reaches 10-2Pa, continue to vacuum for 4 hours, and then open the upper part Connect the glue suction valve of the glue container, slowly suck the adhesive into the bottom of the tank until it completely submerges the optical fiber coil, close the glue suction valve, continue vacuuming the tank for 0.5...

Embodiment 3

[0071] Add 100 parts of epoxy resin prepolymer compound and 10 parts of acid anhydride curing agent into a beaker, put it on a high-strength magnetic stirrer and stir it for 20 minutes, let it stand for 20 minutes, put it in a vacuum defoaming box for 15 minutes, and then transfer it to the impregnation In the glue container 9 on the top of the tank body 1, place it for 20 minutes to wait for glue suction.

[0072] Place the optical fiber coil 5 to be dipped in the bottom of the vacuum pressure impregnation tank 1, close the cover and seal it, then turn on the vacuum pump 7 and open the vacuum valve 2 to vacuumize the inside of the tank, and continue vacuuming for 3 hours after the vacuum degree reaches below 50Pa. Then open the upper glue-absorbing valve 4 connected to the glue container 9, slowly suck the adhesive into the bottom of the tank until the optical fiber coil 5 is completely submerged, close the glue-absorbing valve 4, and continue vacuuming the tank for 0.8h, then...

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Abstract

The invention discloses a gum dipping device and a method for improving the performance of an optical fiber coil. According to the method for improving the performance of the optical fiber coil, a wound optical fiber coil is wholly dipped into an adhesive, the gum dipping process that vacuum-pumping is carried out firstly to remove air inside the coil, and then pressurizing is carried out to uniformly press the adhesive in the optical fiber coil is adopted, the optical fiber coil is taken out after dipping, the redundant adhesive on the surface of the optical fiber coil is cleaned up, and stepped curing treatment and stress release treatment are carried to enable the optical fiber coil to be fully cured and the stress of the optical fiber coil to be fully released, so that a cured optic fiber gyroscope with excellent temperature performance and vibration resistance is obtained. After being cured through the curing method provided by the invention, the optical fiber coil is adhered and fixed into a whole through the adhesive uniformly distributed inside the optical fiber coil , so that the local deformation and strain of the optical fiber at the environment that temperature changes and vibration exists can be effectively reduced, the temperature stability and vibration resistance stability are effectively improved, and the application requirement of high precision on the optic fiber gyroscope fields can be met.

Description

【Technical field】 [0001] The invention relates to a rubber dipping device for improving the performance of an optical fiber coil, in particular to a rubber dipping device and a method for improving the performance of an optical fiber coil. 【Background technique】 [0002] The fiber optic gyroscope is an angular velocity fiber optic sensor based on the Sagnac effect (Sagnac effect), which is mainly composed of an optical path and a circuit. The fiber optic coil is the core component of the fiber optic gyroscope's optical path, and its temperature stability and anti-interference ability directly affect the performance of the fiber optic gyroscope. Optical fiber is a sensitive optical transmission medium, which is very sensitive to the application environment, especially the temperature and vibration environment. Small temperature changes and vibrations will cause structural deformation inside the optical fiber, which will affect the transmission process of the optical path and ...

Claims

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Application Information

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IPC IPC(8): G01C25/00
CPCG01C25/00
Inventor 陈军丁能文李之锋
Owner JIANGXI UNIV OF SCI & TECH
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