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Proceedings Paper

Interferoaetric Fiber Optic Pressure Sensor
Author(s): Liang Dawei; Huang Shanglian
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Paper Abstract

A high accuracy interferosetric fiber-optic pressure sensor is disclosed in this paper. The var-ying pressure-induced displacement is measured by a micro-interferometer installed in the sensing probe of this sensor. The adoption of a tong 0.6328gm single-mode fiber enables the coherent laser beam to be transmitted into the sensing probe and the varying interferosetric light beam to be out-transmitted to the opto-electronic receiver which say be located faraway from the sensing probe. This sensor is,therefore, suitable for the pressure measurements in hazardous environment where electromagnetic interference, poisonous gases, etc. are involved. The measuring accuracy of this sensor is 0.5% of the pressure changes being measured, The dynamic range varies from 3Pa to 125 KPa.

Paper Details

Date Published: 13 February 1990
PDF: 6 pages
Proc. SPIE 1169, Fiber Optic and Laser Sensors VII, (13 February 1990); doi: 10.1117/12.963044
Show Author Affiliations
Liang Dawei, Chongqing University (China)
Huang Shanglian, Chongqing University (China)

Published in SPIE Proceedings Vol. 1169:
Fiber Optic and Laser Sensors VII
Ramon P. DePaula; Eric Udd, Editor(s)

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