Study on high temperature Fabry–Perot fiber acoustic sensor with temperature self-compensation

Pan Hu; Xinglin Tong; Minli Zhao; Chengwei Deng; Qian Guo; Yan Mao; Kun Wang

doi:10.1117/1.OE.54.9.097104

10 September 2015 Study on high temperature Fabry–Perot fiber acoustic sensor with temperature self-compensation

Pan Hu, Xinglin Tong, Minli Zhao, Chengwei Deng, Qian Guo, Yan Mao, Kun Wang

Author Affiliations +

Optical Engineering, Vol. 54, Issue 9, 097104 (September 2015). https://doi.org/10.1117/1.OE.54.9.097104

Abstract

A Fabry–Perot (F-P) fiber acoustic sensor, which can work under high-temperature harsh environment with temperature self-compensation, is designed and prepared. A condenser was used to maintain the sensor to work in a stable temperature environment. Because of the special structure of the sensor and the function of the condenser, the cavity variation of the sensor caused by changes of external temperature from −10°C to 500°C would not exceed 8 nm. The experimental results show that the sensor has a good frequency response in a range of 1 to 5 kHz and the field experiment results show that it could be used for hydraulic decoking online monitoring by judging the acoustic frequency spectrum.

Citation Download Citation

Pan Hu, Xinglin Tong, Minli Zhao, Chengwei Deng, Qian Guo, Yan Mao, and Kun Wang "Study on high temperature Fabry–Perot fiber acoustic sensor with temperature self-compensation," Optical Engineering 54(9), 097104 (10 September 2015). https://doi.org/10.1117/1.OE.54.9.097104

Published: 10 September 2015

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