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RESEARCH PAPERS: Additional Technical Papers

A Novel Pressure Transducer Using Mechanical Resonance

[+] Author and Article Information
J. Ohga, Y. Mizushima

Functional Devices Section, Musashino Electrical Communication Laboratory, N. T. T., Midori-cho, Musashino-shi, Tokyo, Japan

J. Dyn. Sys., Meas., Control 100(1), 83-87 (Mar 01, 1978) (5 pages) doi:10.1115/1.3426344 History: Received January 13, 1978; Online July 13, 2010

Abstract

A novel electromechanical pressure transducer, suitable for telemetering, is proposed. It transforms an absolute static pressure into a frequency signal, using acoustical resonance due to the stiffness of a fluid in a cavity and the mass of a vibrating plate. The relation between the period of the output frequency T and the normalized input pressure p is theoretically given by T2 = A + B/p, where A and B are constants. This relation is verified experimentally by constructing two kinds of models. The advantages and disadvantages of the transducer are discussed.

Copyright © 1978 by ASME
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