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Proceedings Paper

Fiber optic speed sensor for advanced gas turbine engine control
Author(s): Deepak Varshneya; John L. Maida Jr.; Mark A. Overstreet
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Paper Abstract

A fiber optic speed sensor (FOSS) has been developed, bench tested and rig tested in a real turbine airflow environment. The FOSS employs an innovative design using a pressure tube and fiber optic microbend transducer in order to capture turbine blade pass wake frequency. The blade pass frequency can be converted by a signal processor into turbine rotational speed. The FOSS offers unique potential to meet future requirements for performance (0 to 25 KHz) and environmental tolerance (1200 F temperatures and EMI/EMP threats). Future efforts include development of the signal processor and environmental/durability testing focused on developing reliable, long life operation in the hostile environment of an advanced gas turbine engine.

Paper Details

Date Published: 1 February 1991
PDF: 11 pages
Proc. SPIE 1367, Fiber Optic and Laser Sensors VIII, (1 February 1991); doi: 10.1117/12.24742
Show Author Affiliations
Deepak Varshneya, Teledyne Ryan Electronics (United States)
John L. Maida Jr., Teledyne Ryan Electronics (United States)
Mark A. Overstreet, Allison Gas Turbine Div./General Motors Corp. (United States)

Published in SPIE Proceedings Vol. 1367:
Fiber Optic and Laser Sensors VIII
Ramon P. DePaula; Eric Udd, Editor(s)

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