2 January 1998 Advanced signal processing method for interferometric fiber optic sensors with straightforward spectral detection
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Proceedings Volume 3201, Sensors and Controls for Advanced Manufacturing; (1998) https://doi.org/10.1117/12.298023
Event: Intelligent Systems and Advanced Manufacturing, 1997, Pittsburgh, PA, United States
Abstract
The advanced method for straightforward spectral signal processing in interferometric fiber-optic sensors is presented. It is based on the analysis of the output spectrum of sensing interferometer in the domain of Fourier images. The main idea of the proposed method is to use the sensing interferometer with finesse > 2 and process the higher harmonics in addition to the first one. The technique does not suffer from power and spectral fluctuations of LED and sufficiently noise resistant.It is insensitive to the influence of parasitic interferometers appearing in the optical connectors, multimode fibers and other parts of the instrument. Devices based on such principles does not recalibration after switching on and further operation. The optimization of sensor's parameters based on numerical simulations is presented switching on and further operation. The optimization of sensor's parameters based on numerical simulations is presented.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Sergey A. Egorov, Sergey A. Egorov, Anatoly N. Mamaev, Anatoly N. Mamaev, Igor G. Likhachiev, Igor G. Likhachiev, Yuri A. Ershov, Yuri A. Ershov, Arkady S. Voloshin, Arkady S. Voloshin, Eliesar Nir, Eliesar Nir, } "Advanced signal processing method for interferometric fiber optic sensors with straightforward spectral detection", Proc. SPIE 3201, Sensors and Controls for Advanced Manufacturing, (2 January 1998); doi: 10.1117/12.298023; https://doi.org/10.1117/12.298023
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