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| Effect of Typical Adhesives on Strain Transfer of Fiber Bragg Grating Sensor under Variable Temperature |
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| DOI：10.7643/issn.1672-9242.2023.05.013 |
| KeyWord:fiber bragg grating surface fixation high and low temperature cyclic test tensile load test central wavelength strain sensitivity |
| Author | Institution |
| LI Bao-ji |
AVIC Chengdu Caic Electronics Co., Ltd., Chengdu 1, China |
| LIU Wen-fa |
Army Aviation Military Representative Office in Chengdu, Chengdu , China |
| CAO De-yao |
Army Aviation Military Representative Office in Chengdu, Chengdu , China |
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| Abstract: |
| The work aims to verify the adaptability of the adhesive FBG sensor to the environment. The effect of high and low temperature cyclic test on the performance of the sensor was studied. In order to analyze and optimize the installation parameters of FBG sensor, four kinds of adhesives such as 353ND, UHU PLUS, ergo 5800, and 502 were used to fix the FBG sensor on the surface of aluminum alloy to obtain the FBG specimen. Then, the specimen was subject to high and low temperature cyclic test and the sensing performance of FBG specimen was analyzed before and after the test. The effect of high and low temperature cycle on the performance of FBG sensor was explored. After high and low temperature cycle, the central wavelength of the FBG sensor changed from 0.015 nm to 0.642 nm and the sensitivity drop range of the sensor was 0.563%~2.07%. In practical engineering applications, special attention should be paid to the applicable range of adhesive temperature, so as to reduce the effect of temperature adaptability of adhesive on the test results and improve the measurement accuracy. |
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