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RESEARCH PAPERS

The Use of Semi-Conductor Sensors for Blade Surface Pressure Measurement in a Model Turbine Stage

[+] Author and Article Information
R. W. Ainsworth, A. J. Dietz

Department of Engineering Science, Oxford University, Oxford OX1 3PJ United Kingdom

T. A. Nunn

Kulite Semi-Conductor Inc., Leonia, NJ

J. Eng. Gas Turbines Power 113(2), 261-268 (Apr 01, 1991) (8 pages) doi:10.1115/1.2906557 History: Received January 24, 1990; Online April 24, 2008

Abstract

The development of semi-conductor sensors particularly aimed at gas turbine technology applications is outlined. Methods of manufacture and means of utilizing some of the inherent advantages of this type of sensor are discussed. A novel technique, where miniature sensors are attached directly to the surface where the measurement is required, is described. This technique combines a high surface density of measurement points with a high frequency response capability. Detailed tests of the sensor’s performance have been conducted and results obtained using this technology are presented. The performance tests include frequency response, base strain sensitivity, g sensitivity, and software temperature compensation schemes. Finally, possible future applications for these techniques in gas turbine technology are outlined.

Copyright © 1991 by The American Society of Mechanical Engineers
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