Paper
13 February 1990 Interferoaetric Fiber Optic Pressure Sensor
Liang Dawei, Huang Shanglian
Author Affiliations +
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.
© (1990) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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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CITATIONS
Cited by 2 patents.
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KEYWORDS
Sensors

Fiber optics sensors

Fiber optics

Metals

Beam splitters

Fiber lasers

Interferometry

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