System and method for fiber magneto-optic detection
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United States of America Patent
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Sep 23, 2014
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Nov 22, 2010
filing date -
Dec 31, 2009
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Abstract
A system and method for fiber magneto-optic detection are provided, which belongs to the optical application field. The system comprises: a reference device (300) for generating a reference magnetic field signal with known amplitude and shape at a measurement point; a magneto-optic probe (100) for detecting a magnetic field signal of the measuring point, converting the magnetic field signal into an optical signal, and transmitting to a power supply and signal processing module (400) the optical signal sent by the magneto-optic probe; the power supply and signal processing module (400) for transmitting laser light, and converting the optical signal into an electrical signal after receiving it, and demodulating and analyzing the electric signal to acquire the magnetic field information and/or the current information of the measuring point. The reference device (300) is provided in the system, and the measured signals can be corrected by the reference magnetic field signal generated by the reference device (300) to remove the influences environment factors cause on the measurement. Thus accurate measurement data are acquired and the measurement accuracy of the system is improved.
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