23 July 1993 The application of infrared optical fiber in electric motor temperature measurement
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Proceedings Volume 1983, 16th Congress of the International Commission for Optics: Optics as a Key to High Technology; 1983CA (1993) https://doi.org/10.1117/12.2308861
Event: 16th Congress of the International Commission for Optics: Optics as a Key to High Technology, 1993, Budapest, Hungary
Abstract
Stimulated Brillouin scattering (SBS) in optical fibers can be applied to realize a distributed temperature sensor by evaluating the frequency analog conversion of the temperature dependent fiber parameters (experimental result: frequency dependence of 1.3MHz/°C). By mixing the pump wave with the stimulated Brillouin wave a heat signal in the microwave range is generated. Using a local wave which is frequency shifted with respect to the pump wave the resulting beat signal frequency can be reduced, so that it is possible to use cheap detectors and conventional electronic components. Keywords: temperature sensor, beat signal, local laser.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hua Yan, Hua Yan, } "The application of infrared optical fiber in electric motor temperature measurement", Proc. SPIE 1983, 16th Congress of the International Commission for Optics: Optics as a Key to High Technology, 1983CA (23 July 1993); doi: 10.1117/12.2308861; https://doi.org/10.1117/12.2308861
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