FIELD: electricity.
SUBSTANCE: combined electric arc sensor containing fibre waveguide with light-permeable cover, photoreceiver also includes optic Faraday gate; end of fibre waveguide is connected through optic Faraday gate to optic input of photoreceiver the electric output of which is the output of sensor; at that, optic Faraday gate is normally closed.
EFFECT: increasing signal-interference ratio in relation to the ratio of light impacts of artificial and natural origin.
2 dwg
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