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RESEARCH PAPERS

An Ultrasonic Pressure Gage

[+] Author and Article Information
Peter L. M. Heydemann

National Bureau of Standards, Gaithersburg, Md.

J. Basic Eng 89(3), 551-553 (Sep 01, 1967) (3 pages) doi:10.1115/1.3609656 History: Received August 01, 1966; Online November 03, 2011

Abstract

The transit time of short ultrasonic pulses in solid rods is used to measure pressures throughout the fluid range. Self-excited regenerating circuits are used. Measurements to 3500 bar with an uncertainty of 0.3 bar and to 20 kb with an uncertainty of 2 bar are reported. Further improvements, temperature compensation, and stability are discussed.

Copyright © 1967 by ASME
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