Interferoaetric Fiber Optic Pressure Sensor

Liang Dawei; Huang Shanglian

doi:10.1117/12.963044

13 February 1990 Interferoaetric Fiber Optic Pressure Sensor

Liang Dawei, Huang Shanglian

Proceedings Volume 1169, Fiber Optic and Laser Sensors VII; (1990) https://doi.org/10.1117/12.963044
Event: OE/FIBERS '89, 1989, Boston, United States

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.

Citation Download Citation

Liang Dawei and Huang Shanglian "Interferoaetric Fiber Optic Pressure Sensor", Proc. SPIE 1169, Fiber Optic and Laser Sensors VII, (13 February 1990); https://doi.org/10.1117/12.963044

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