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Proceedings Paper

Multiplexing optical fiber-based pressure sensors for smart wings
Author(s): Mark E. Jones; Paul Grems Duncan; Ricky Crotts; Kevin A. Shinpaugh; Jennifer L. Grace; Kent A. Murphy; Richard O. Claus; Wade J. Pulliam; Joseph A. Schetz
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Paper Abstract

A novel, multiplexed optical fiber differential-pressure transducer is described for the real-time pressure measurement of airflow in applications involving actuator- and SMA-controlled airfoils and multi-parameter skin friction measurements. The design of the pressure transducer is based upon extrinsic Fabry-Perot interferometry (EFPI) and uses a micromachined silicon diaphragm to modulate the sensing cavity. The pressure transducer was designed to operate from minus 10 to 10 psig and have a resolution of greater than 0.01 psi. Ten pressure transducers were spatially multiplexed and tested for smart wing applications. Results are also reported for an integrated skin friction balance/optical fiber pressure transducer tested in Virginia Tech's Supersonic Tunnel (VTSST).

Paper Details

Date Published: 27 November 1996
PDF: 7 pages
Proc. SPIE 2838, Distributed and Multiplexed Fiber Optic Sensors VI, (27 November 1996); doi: 10.1117/12.259803
Show Author Affiliations
Mark E. Jones, Fiber and Sensor Technologies, Inc. (United States)
Paul Grems Duncan, Fiber and Sensor Technologies, Inc. (United States)
Ricky Crotts, Fiber and Sensor Technologies, Inc. (United States)
Kevin A. Shinpaugh, Fiber and Sensor Technologies, Inc. (United States)
Jennifer L. Grace, Fiber and Sensor Technologies, Inc. (United States)
Kent A. Murphy, Virginia Polytechnic Institute and State Univ. (United States)
Richard O. Claus, Virginia Polytechnic Institute and State Univ. (United States)
Wade J. Pulliam, Virginia Polytechnic Institute and State Univ. (United States)
Joseph A. Schetz, Virginia Polytechnic Institute and State Univ. (United States)


Published in SPIE Proceedings Vol. 2838:
Distributed and Multiplexed Fiber Optic Sensors VI
Alan D. Kersey; John P. Dakin, Editor(s)

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