| 摘要 |
An optical current transformer in which two light beams coming from the same source successively pass through: (1) a first polarizer, a first material having a magnetic rotational power influenced by the electrical current to be measured and a first analyzer, to end up on a photoelectric detector; and (2) a second polarizer, a second material having a magnetic rotational power influenced by a measuring electrical current and a second analyzer, to end up on the same photoelectric detector. The measuring current is dependent on the detector for maintaining a constant flux on the latter. The angle between the polarization planes of the polarizers and the analyzers of each pair is 45 DEG .
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