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Proceedings Paper

Optical fiber voltage sensor based on Michelsion interferometer using Fabry-Perot demodulation interferometer
Author(s): Xinwei Chen; Shengnan He; Dandan Li; Kai Wang; Yan'en Fan; Shuai Wu
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Paper Abstract

We present an optical fiber voltage sensor by Michelsion interferometer (MI) employing a Fabry-Perot (F-P) interferometer and the DC phase tracking (DCPT) signal processing method. By mounting a MI fabricated by an optical fiber coupler on a piezoelectric (PZT) transducer bar, a dynamic strain would be generated to change the optical path difference (OPD) of the interferometer when the measured voltage was applied on the PZT. Applying an F-P interferometer to demodulate the optical intensity variation output of the MI, the voltage can be obtained. The experiment results show that the relationship between the optical intensity variation and the voltage applied on the PZT is approximately linear. Furthermore, the phase generate carrier (PGC) algorithm was applied to demodulate the output of the sensor also.

Paper Details

Date Published: 11 November 2014
PDF: 7 pages
Proc. SPIE 9274, Advanced Sensor Systems and Applications VI, 92741Y (11 November 2014); doi: 10.1117/12.2073392
Show Author Affiliations
Xinwei Chen, East China Research Institute of Electronic Engineering (China)
Shengnan He, East China Research Institute of Electronic Engineering (China)
Dandan Li, East China Research Institute of Electronic Engineering (China)
Kai Wang, East China Research Institute of Electronic Engineering (China)
Yan'en Fan, East China Research Institute of Electronic Engineering (China)
Shuai Wu, East China Research Institute of Electronic Engineering (China)


Published in SPIE Proceedings Vol. 9274:
Advanced Sensor Systems and Applications VI
Tiegen Liu; Shibin Jiang; Niels Neumann, Editor(s)

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