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A kind of UV curing glue for fiber optic gyroscope

A technology of fiber optic gyroscope and ultraviolet light, which is applied in the direction of Sagnac effect gyroscope, gyroscope/steering sensing equipment, adhesive, etc., can solve the problems of comprehensive consideration of the temperature performance and vibration performance of the fiber optic ring, and achieve the improvement of accuracy and Effects of stability, improved vibration performance, and improved temperature performance

Active Publication Date: 2022-01-07
XIAN AEROSPACE PRECISION ELECTROMECHANICAL INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The above research mainly examines the temperature performance of the optical fiber ring wound by curing adhesive from factors such as process, thermal expansion and cold contraction of the adhesive, and fails to comprehensively consider the temperature performance and vibration performance of the optical fiber ring to provide the parameters and ratio of UV adhesive.

Method used

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  • A kind of UV curing glue for fiber optic gyroscope

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Mix 100 parts of aliphatic urethane acrylate, 30 parts of bisphenol A epoxy acrylate, 30 parts of neopentyl glycol diacrylate, 20 parts of isobornyl acrylate, 5 parts of 184, and 1 part of KH560, stir evenly, and then vacuumize , to be circled.

Embodiment 2

[0032] 120 parts of aliphatic urethane acrylate, 50 parts of bisphenol A epoxy acrylate, 25 parts of tripropylene glycol diacrylate, 15 parts of isobornyl methacrylate, 6 parts of 1173, 2 parts of KH560 are mixed and stirred evenly, and then pumped Vacuum, to be wound around.

Embodiment 3

[0034] 110 parts of aliphatic urethane acrylate, 40 parts of bisphenol A epoxy acrylate, 20 parts of 1,6-hexanediol diacrylate, 20 parts of tripropylene glycol diacrylate, 4 parts of TPO, 1 part of KH560, mixed and stirred Evenly, then vacuum, to be around the ring.

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Abstract

The invention comprehensively considers the temperature performance and the vibration performance of the optical fiber ring, and provides an ultraviolet light curing adhesive for the optical fiber gyroscope. It includes the following components: polyurethane acrylate, epoxy acrylate, reactive diluent, photoinitiator, silane coupling agent; the mass ratio of the above components is: 100~120:30~50:10~50:4~ 6:1~2; urethane acrylate is one or a mixture of aromatic urethane acrylate and aliphatic urethane acrylate; and polyurethane acrylate has a functionality of 2 to 6, a molecular weight of less than 10,000, and a viscosity at 25°C Less than 8000mPa·s, glass transition temperature less than 20°C; epoxy acrylate is one or more of bisphenol A epoxy acrylate, novolac epoxy acrylate, epoxy oil acrylate and modified epoxy acrylate and the epoxy acrylate has a functionality of 2 to 4, a molecular weight of less than 1000, a viscosity of less than 4000mPa·s at 60°C, and a glass transition temperature greater than 20°C.

Description

technical field [0001] The invention belongs to the field of adhesives, and in particular relates to an ultraviolet light curing adhesive for an optical fiber gyroscope. Background technique [0002] Fiber optic gyro is a new type of angular rate sensor based on the Sagnac effect. It has the characteristics of small size, light weight, wide range of accuracy, and long life. It has been widely used in aerospace, aviation, navigation and other fields. [0003] The fiber optic ring is the core sensitive element of the fiber optic gyroscope, and its environmental adaptability directly determines the application of the fiber optic gyroscope. The optical fiber ring is mainly composed of quartz (core and cladding) and polymer materials (fiber inner and outer coatings and curing glue). At the same time, the curing glue is coated on the surface of the optical fiber and then cured. In a certain looping mode, the performance of the curing glue largely determines the accuracy of the f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J175/14C09J163/10C09J11/06G01C19/72
CPCC09J175/14C09J11/06G01C19/721C08L63/10C08K5/5435C08K5/5425
Inventor 李龙刚李鹏贾新亮曹平平赵春兰杨鹏吉世涛潘子军任宾
Owner XIAN AEROSPACE PRECISION ELECTROMECHANICAL INST