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Proceedings Paper

Electrically passive acoustic-resonance-level gauge
Author(s): Denis Donlagic
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Paper Abstract

This paper presents a novel electrically passive level gauge suitable for use under industrial and other extreme conditions. The method exploits acoustics resonance of one- dimensional gas resonator. A low cost interferometric fiber- optic microphone is proposed as an acoustic pressure sensor and the acoustic power is delivered to the resonator by the acoustic waveguide. The distances over 120 m between the electrically passive sensor and the electrically active controller were experimentally demonstrated. The proposed method proves to be very robust and useful under heavy operating conditions.

Paper Details

Date Published: 31 May 1999
PDF: 9 pages
Proc. SPIE 3670, Smart Structures and Materials 1999: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials, (31 May 1999); doi: 10.1117/12.349726
Show Author Affiliations
Denis Donlagic, Univ. of Maribor (Slovenia)


Published in SPIE Proceedings Vol. 3670:
Smart Structures and Materials 1999: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials
Richard O. Claus; William B. Spillman Jr., Editor(s)

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