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TECHNICAL BRIEFS

A Computer-Controlled Pressure Standard

[+] Author and Article Information
Othon K. Rediniotis

Aerospace Engineering Department, Texas A&M University, College Station, TX 77843-3141

J. Fluids Eng 121(1), 210-212 (Mar 01, 1999) (3 pages) doi:10.1115/1.2822006 History: Received December 08, 1997; Revised November 02, 1998; Online December 04, 2007

Abstract

The operating principles, as well as the technical aspects of the implementation of a new computer-controlled pressure standard are presented. The instrument can have dual use: either as a pressure source or as a pressure sensor. The device is intended mostly for use in problems where small differential pressures are of interest, i. e., 0–2.5 KPa and high accuracy is desired. Such a pressure range encompasses, for example, most of the pressure measurement applications in subsonic wind-tunnel testing. The device interfaces to a PC and is ideal for fully-automated pressure transducer calibration applications. The accuracy of the pressures produced or measured by the device is 0.08 percent F. S. (Full Scale).

Copyright © 1999 by The American Society of Mechanical Engineers
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