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Proceedings Paper

Frequency-Coded Optical-Actuator Pressure Sensing
Author(s): Mark Johnson
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Paper Abstract

A hollow glass tube is configured both as an oscillating cantilever and, by way of distortions of the tube walls, as a transducer of fluid pressure. Excitation of the vibration, whose frequency is a representation of pressure, and readout of the resultant motion, is carried out over long, multimode fibers. The excitation process is thermal via differential expansion effects between tube and a deposited layer. The device constitutes an all-optical, frequency-coded fiber pressure sensor.

Paper Details

Date Published: 14 October 1987
PDF: 4 pages
Proc. SPIE 0798, Fiber Optic Sensors II, (14 October 1987); doi: 10.1117/12.941105
Show Author Affiliations
Mark Johnson, Technische Universitat Hamburg-Harburg (Germany)

Published in SPIE Proceedings Vol. 0798:
Fiber Optic Sensors II
Anna Maria Verga Scheggi, Editor(s)

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