13 February 1990 High-Temperature Fiber Optic Pressure Sensor
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Two versions of a fast-response microbend pressure sensor have been developed for deployment in high temperature environments. Aluminum-coated fiber is used in a drum configuration in the sensors which employ a unique "fingered" flexural diaphragm technique to induce microbend attenuation. A dedicated test facility consisting of a shock tube and customized furnace has been established for high-temperature pressure sensor evaluation. The shock tube delivers reproducible, fast rise-time pressure pulses. Sensor response has been obtained using single mode fiber. The furnace, which has been built around the shock tube, and which maintains a heated environment to 750°C, has not yet been used with the fiber sensors.
© (1990) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Robert J. Ferina, Robert J. Ferina, Valentinas Sernas, Valentinas Sernas, Constantine Polymeropoulos, Constantine Polymeropoulos, George H. Sigel,, George H. Sigel,, "High-Temperature Fiber Optic Pressure Sensor", Proc. SPIE 1169, Fiber Optic and Laser Sensors VII, (13 February 1990); doi: 10.1117/12.963040; https://doi.org/10.1117/12.963040

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