High-sensitivity pressure sensor based on fiber Bragg grating and metal bellows

Dongcao Song; Jilin Zou; Zhanxiong Wei; Shangming Yang; Hong-Liang Cui

doi:10.1117/12.815624

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27 April 2009 High-sensitivity pressure sensor based on fiber Bragg grating and metal bellows

Dongcao Song, Jilin Zou, Zhanxiong Wei, Shangming Yang, Hong-Liang Cui

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Proceedings Volume 7316, Fiber Optic Sensors and Applications VI; 73160H (2009) https://doi.org/10.1117/12.815624
Event: SPIE Defense, Security, and Sensing, 2009, Orlando, Florida, United States

Abstract

An optical fiber pressure sensor based on fiber Bragg grating (FBG) and metal bellows is presented in this paper. Due to the lower spring rate of metal bellows, the sensitivity is improved to 48pm/kPa. The relationship between Bragg wavelength and the applied pressure is derived. Experimental data indicates that there is good linear relation between the Bragg wavelength shift and the applied pressure. This sensor can be utilized in low pressure measurement.

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Dongcao Song, Jilin Zou, Zhanxiong Wei, Shangming Yang, and Hong-Liang Cui "High-sensitivity pressure sensor based on fiber Bragg grating and metal bellows", Proc. SPIE 7316, Fiber Optic Sensors and Applications VI, 73160H (27 April 2009); https://doi.org/10.1117/12.815624

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