Simultaneous interrogation of multiple FBG sensors for dynamic measurands

Chunzheng Shi; Chi Chiu Chan; Min Zhang; J. Ju; Wei Jin; Yanbiao Liao; Yan Zhang; Y. Zhou

doi:10.1117/12.481949

9 September 2002 Simultaneous interrogation of multiple FBG sensors for dynamic measurands

Chunzheng Shi, Chi Chiu Chan, Min Zhang, J. Ju, Wei Jin, Yanbiao Liao, Yan Zhang, Y. Zhou

Proceedings Volume 4920, Advanced Sensor Systems and Applications; (2002) https://doi.org/10.1117/12.481949
Event: Photonics Asia, 2002, Shanghai, China

Abstract

A fiber Bragg grating (FBG) sensor system for multi point, dynamic strain or temperature measurement is reported. The system uses a combination of an unbalanced fiber interferometer and phase locked loops and is capable of measuring dynamic signals with frequencies ranging from 100Hz to10kHz. Strain measurements with parallel FBG sensor arrays demonstrate strain resolution of better than 27.5n?/?Hz and measurement range of 0-3400?? at10kHz.

Citation Download Citation

Chunzheng Shi, Chi Chiu Chan, Min Zhang, J. Ju, Wei Jin, Yanbiao Liao, Yan Zhang, and Y. Zhou "Simultaneous interrogation of multiple FBG sensors for dynamic measurands", Proc. SPIE 4920, Advanced Sensor Systems and Applications, (9 September 2002); https://doi.org/10.1117/12.481949

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