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Proceedings Paper

Fiber Optic Speed Sensor For Gas Turbine Engine Control
Author(s): Mark A. Overstreet; Victor J. Bird; Deepak Varshneya; John L. Maida
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Paper Abstract

Allison Gas Turbine Division of General Motors Corporation, with Teledyne Ryan Electronics, has developed and demonstrated a fiber optic speed sensor (FOSS) for application to advanced fiber optic based control systems for gas turbine engines. The subject FOSS is capable of measuring turbine engine rotational speed throughout a speed range of 0-22,000+ rpm, which is equivalent to a sensor bandwidth of approximately 25 KHz. The principle of operation is based on directly sensing the pressure pulses generated by passing turbine blades via a pressure tube, a diaphragm at the top of the pressure tube, and a fiber optic microbend transducer affixed to the diaphragm. Transceiver electronics/optoelectronics are remotely located.

Paper Details

Date Published: 13 February 1990
PDF: 11 pages
Proc. SPIE 1169, Fiber Optic and Laser Sensors VII, (13 February 1990); doi: 10.1117/12.963068
Show Author Affiliations
Mark A. Overstreet, General Motors Corporation (United States)
Victor J. Bird, General Motors Corporation (United States)
Deepak Varshneya, Teledyne Ryan Electronics (United States)
John L. Maida, Teledyne Ryan Electronics (United States)

Published in SPIE Proceedings Vol. 1169:
Fiber Optic and Laser Sensors VII
Ramon P. DePaula; Eric Udd, Editor(s)

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