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Proceedings Paper

High precision optical fiber Fabry-Perot sensor for gas pressure detection
Author(s): Yan Mao; Xing-lin Tong
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Paper Abstract

An optical fiber Fabry-Perot (F-P) sensor with quartz diaphragm for gas pressure testing was designed and fabricated. It consisted of single-mode fiber, hollow glass tube and quartz diaphragm. It uses the double peak demodulation to obtain the initialized cavity length. The variety of cavity length can be calcultated by the single peak demodulation after changing the gas pressure. The results show that the sensor is small in size, whose sensitivity is 19 pm/kPa in the range of the 10 ~ 260 kPa gas pressure. And it has good linearity and repeatability.

Paper Details

Date Published: 15 October 2013
PDF: 4 pages
Proc. SPIE 8924, Fourth Asia Pacific Optical Sensors Conference, 89240J (15 October 2013); doi: 10.1117/12.2031150
Show Author Affiliations
Yan Mao, Wuhan Univ. of Technology (China)
Air Force Early Warning Academy (China)
Xing-lin Tong, Wuhan Univ. of Technology (China)


Published in SPIE Proceedings Vol. 8924:
Fourth Asia Pacific Optical Sensors Conference
Minghong Yang; Dongning Wang; Yun-Jiang Rao, Editor(s)

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