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Proceedings Paper

Thermal effect of fiber interferometer using coaxial structure
Author(s): Kuang Wu; Zhang Min; Zhehan Wang; Yanbiao Liao
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Paper Abstract

In this paper, a theoretical model of the interferometer using the coaxial structure was established to investigate the temperature effect in measuring the acoustic wave. The experimental result shows that the ratio of the phase shift is 312.5 rad/°C when the Michelson interferometer was used with the 3 meters fiber and the Aluminum as the cylinders. If the maximum amplitude of the signal that can be measured by the system is 10 rad, the temperature variation should be smaller than 0.032°C to keep the system from out of measurement range. Then in a system with measuring time period is 6s for seismic detection, the temperature variation should be smaller than 0.0054°C/s within the measuring period.

Paper Details

Date Published: 5 November 2005
PDF: 8 pages
Proc. SPIE 5998, Sensors for Harsh Environments II, 59980A (5 November 2005); doi: 10.1117/12.631023
Show Author Affiliations
Kuang Wu, Tsinghua Univ. (China)
Zhang Min, Tsinghua Univ. (China)
Zhehan Wang, Tsinghua Univ. (China)
Yanbiao Liao, Tsinghua Univ. (China)


Published in SPIE Proceedings Vol. 5998:
Sensors for Harsh Environments II
Anbo Wang, Editor(s)

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