27 April 2009 High-sensitivity pressure sensor based on fiber Bragg grating and metal bellows
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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, Dongcao Song, Jilin Zou, Jilin Zou, Zhanxiong Wei, Zhanxiong Wei, Shangming Yang, Shangming Yang, Hong-Liang Cui, 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); doi: 10.1117/12.815624; https://doi.org/10.1117/12.815624
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