An optical current sensor and high-frequency signal measurement system
A current sensor and optical sensing technology, applied in the direction of voltage/current isolation, measurement using digital measurement technology, etc., to achieve the effect of convenient daily maintenance and replacement, avoiding potential safety hazards, and simple structure
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[0033] The present invention will be described below in conjunction with the accompanying drawings.
[0034] The invention relates to an optical current sensor, which is used for current measurement in a power system, especially for high-voltage and high-current high-frequency current measurement, such as high-voltage busbar or high-frequency current measurement on electrodes. The structure of the optical current sensor is as figure 1 As shown, it includes an optical sensing component 1, a polarization maintaining optical fiber 2, an insulator 3 and a demodulation module, wherein the optical sensing component 1, a polarization maintaining optical fiber 2 and a demodulation module are connected in sequence, and the optical sensing component 1 is supported by an insulator 3 , the polarization maintaining optical fiber 2 is located in the cavity of the insulator 3, and the cavity of the insulator 3 is filled with an insulating medium. The material of the insulator 3 in high freq...
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