Fiber Optic-Thin Film Temperature Sensor.

Glenn Boreman; Roy Walters; Danial Lester

doi:10.1117/12.949806

3 January 1986 Fiber Optic-Thin Film Temperature Sensor.

Glenn Boreman, Roy Walters, Danial Lester

Proceedings Volume 0566, Fiber Optic and Laser Sensors III; (1986) https://doi.org/10.1117/12.949806
Event: 29th Annual Technical Symposium, 1985, San Diego, United States

Abstract

A requirement to measure' temperature' in 1.2 Tesla magnetic fields by a. reliable, low resolution, permanently calibrated instrument. has led to the development of an all-dielectric sensor'. It is composed. of fiber optic communication line, gradient index lenses and a temperature sensitve narrow band-pass, interference filter. The spectral location of the filter passband is temperature dependent and was observed, as a large modulation of transmitted laser power on the filter edge. The resolution of a. sensor based on the spectral mean of transmitted light was better than 5 degrees celsius from 20 to 150 degrees celsius. A. line source in a. wavelength region away from the filter resonance is used for continuous spectrometer calibration. The multiplexing of sensors, is described.

Citation Download Citation

Glenn Boreman, Roy Walters, and Danial Lester "Fiber Optic-Thin Film Temperature Sensor.", Proc. SPIE 0566, Fiber Optic and Laser Sensors III, (3 January 1986); https://doi.org/10.1117/12.949806

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