Optical fiber pressure transducer with improved sensitivity and linearity

Xiaobao Chen; Qianmei Chen

doi:10.1117/12.49983

1 August 1991 Optical fiber pressure transducer with improved sensitivity and linearity

Xiaobao Chen, Qianmei Chen

Proceedings Volume 1572, International Conference on Optical Fibre Sensors in China OFS(C) '91; (1991) https://doi.org/10.1117/12.49983
Event: International Conference on Optical Fibre Sensors in China, 1991, Wuhan, China

Abstract

In this paper, an optical fiber pressure transducer, measuring range from 0 to 1.6 MPa, resolution 0.0001 MPa, and non-linearity error less than 0.5%, is presented. Similar to previous techniques, this transducer determines pressure on the strain of the pressure diaphragm. But it introduces a multi-mode Y splitter in the illuminating fiber of the primary two-fiber displacement sensor to receive the reference signal collected by illuminating the fiber itself. Theoretical analysis and trial data show that the pressure transducer based on this design has improved sensitivity, while its non-linearity error has decreased. It is confirmed also that the pressure transducer has long term stability.

Citation Download Citation

Xiaobao Chen and Qianmei Chen "Optical fiber pressure transducer with improved sensitivity and linearity", Proc. SPIE 1572, International Conference on Optical Fibre Sensors in China OFS(C) '91, (1 August 1991); https://doi.org/10.1117/12.49983

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