Interferometer fiber optic sensor for dc signal measurement

Yasuyuki Nakajima; Ryotaku Sato; T. Yoshikawa; Koji Dobashi

doi:10.1117/12.427001

8 May 2001 Interferometer fiber optic sensor for dc signal measurement

Yasuyuki Nakajima, Ryotaku Sato, T. Yoshikawa, Koji Dobashi

Proceedings Volume 4416, Optical Engineering for Sensing and Nanotechnology (ICOSN 2001); (2001) https://doi.org/10.1117/12.427001
Event: Optical Engineering for Sensing and Nanotechnology (ICOSN '01), 2001, Yokohama, Japan

Abstract

We present a novel interferometer fiber optic sensor (IFOS) system for DC signal measurement based on the PGC (phase generated carrier) demodulation scheme. In addition to the principle of the demodulation, the compensation techniques for improving the measurement precision constrained by the laser nonlinearity in frequency modulation (FM) operation and the experimental results are described. And now, we've made a prototype water level sensor and been trying the field tests, so we show the first results compared with those of the float-typed reference sensor.

Citation Download Citation

Yasuyuki Nakajima, Ryotaku Sato, T. Yoshikawa, and Koji Dobashi "Interferometer fiber optic sensor for dc signal measurement", Proc. SPIE 4416, Optical Engineering for Sensing and Nanotechnology (ICOSN 2001), (8 May 2001); https://doi.org/10.1117/12.427001

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