Fiber-optic/photoelastic device measures gas pressures up to 600 psi at operating temperatures as high as 1,100 degrees C. Pressure on fused-silica sensing element gives rise to birefringence via photoelastic effect. Polarization of light changed by birefringence; change in polarization measured and used to infer pressure causing it. Device prototype of gas-pressure sensor for aircraft engine. Mounted in engine at or near desired measurement point, where it responds to both time-varying and steady components of pressure.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Fiber-Optic Photoelastic Device Senses Pressure Of Hot Gas


    Contributors:

    Published in:

    Publication date :

    1995-06-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




    Fiber-Optic/Photoelastic Flow Sensors

    Wesson, Laurence N. / Cabato, Nellie L. / Brooks, Edward F. | NTRS | 1995



    Two-wavelength loss-compensated fiber optic photoelastic pressure sensor [2594-24]

    Yoshino, T. T. / Haneishi, M. / SPIE | British Library Conference Proceedings | 1996


    Multimode Fiber Optic Sensors Based On The Photoelastic Effect

    Spillman, W. B. / McMahon, D. H. | SPIE | 1983


    Photoelastic And Electro-Optic Sensors

    Walker, Clifford G. | SPIE | 1983