High-sensitivity fiber Bragg grating pressure sensor using metal bellows

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

doi:10.1117/1.3102073

1 March 2009 High-sensitivity fiber Bragg grating pressure sensor using metal bellows

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

Author Affiliations +

Optical Engineering, Vol. 48, Issue 3, 034403 (March 2009). https://doi.org/10.1117/1.3102073

Abstract

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

©(2009) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Dongcao Song, Jilin Zou, Zhanxiong Wei, Shangming Yang, and Hong-Liang Cui "High-sensitivity fiber Bragg grating pressure sensor using metal bellows," Optical Engineering 48(3), 034403 (1 March 2009). https://doi.org/10.1117/1.3102073

Published: 1 March 2009

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