Fiber-optic current sensor
Sensor for measuring direct current by magneto-optic effect / From Wikipedia, the free encyclopedia
A fiber-optic current sensor (FOCS) is a device designed to measure direct current. Utilizing a single-ended optical fiber wrapped around the current conductor,[1] FOCS exploits the magneto-optic effect (Faraday effect).[2] The FOCS can measure uni- or bi-directional DC currents up to 600 kA, with an accuracy within ±0.1% of the measured value.[3][4]: 2 [5]
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