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Proceedings Paper

Fiber optic pressure sensor with reflecting optical structure for the simultaneous measurment of temperature
Author(s): Xiaoping Zheng; Yanbiao Liao; KaiDe Zha
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Paper Abstract

A novel fiber-optic pressure sensor with reflecting optical structure for the simultaneous measurement of temperature is presented. The operation principle of the sensor is based on the photoelastic effect and the temperature signal is extracted from the fluctuation of the quasi working point of the sensor due to the thermal effect of the wave plate. The wave plate used here is not the 1/4 lambda as used in typical photoelastic pressure sensors in order to obtain the best response of linearity. Two kinds of bridge compensation techniques are used for the pressure and the temperature respectively. The experimental results show that once the temperature is determined, the fluctuation of the pressure output can be eliminated, and more accurate pressure meter is available.

Paper Details

Date Published: 24 September 1996
PDF: 7 pages
Proc. SPIE 2895, Fiber Optic Sensors V, (24 September 1996); doi: 10.1117/12.252163
Show Author Affiliations
Xiaoping Zheng, Tsinghua Univ. (China)
Yanbiao Liao, Tsinghua Univ. (China)
KaiDe Zha, Tsinghua Univ. (China)

Published in SPIE Proceedings Vol. 2895:
Fiber Optic Sensors V
Kim D. Bennett; Byoung Yoon Kim; Yanbiao Liao, Editor(s)

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