1 August 1991 FFT measuring method for magneto-optical ac current measurement
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Proceedings Volume 1572, International Conference on Optical Fibre Sensors in China OFS(C) '91; (1991) https://doi.org/10.1117/12.50083
Event: International Conference on Optical Fibre Sensors in China, 1991, Wuhan, China
Abstract
A magneto-optical effect a polarizer is used in place of the Wollaston prism. For this simplified equipment, a new measuring technique has been developed--calculating the harmonics amplitude and phase shift of a measured current by means of the frequency spectrum of the output voltage. Then the current wave can be synthesized by the known parameters. The best way to obtain the spectrum is by fast fourier transform.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Shichuang Hu, Shichuang Hu, Miaoyuan Ye, Miaoyuan Ye, Gen Qu, Gen Qu, } "FFT measuring method for magneto-optical ac current measurement", Proc. SPIE 1572, International Conference on Optical Fibre Sensors in China OFS(C) '91, (1 August 1991); doi: 10.1117/12.50083; https://doi.org/10.1117/12.50083
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