Multiplexing optical fiber-based pressure sensors for smart wings

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

doi:10.1117/12.259803

27 November 1996 Multiplexing optical fiber-based pressure sensors for smart wings

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

Author Affiliations +

Proceedings Volume 2838, Distributed and Multiplexed Fiber Optic Sensors VI; (1996) https://doi.org/10.1117/12.259803
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

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 psi_g 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).

Citation Download Citation

Mark E. Jones, Paul Grems Duncan, Ricky Crotts, Kevin A. Shinpaugh, Jennifer L. Grace, Kent A. Murphy, Richard O. Claus, Wade J. Pulliam, and Joseph A. Schetz "Multiplexing optical fiber-based pressure sensors for smart wings", Proc. SPIE 2838, Distributed and Multiplexed Fiber Optic Sensors VI, (27 November 1996); https://doi.org/10.1117/12.259803

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