PYROMETRIC SENSOR OF COORDINATES OF FIRE SOURCE WITH FIELD STOP Russian patent published in 2014 - IPC G08B17/00 

FIELD: fire safety.

SUBSTANCE: pyrometric sensor comprises a light flux splitter, light filters with different transmission spectra, and radiation receivers consistently mounted and optically connected into an optical system, it additionally comprises a field stop with a variable distribution law of transparent and opaque areas, mounted after the light flux splitter in one of the optical channels, the executive circuit additionally comprises a stop control unit, and single-element non-coordinate radiation receivers are used as the radiation receivers.

EFFECT: ensuring the possibility of recording radiation of fire sources shifted relative to the optical axis of the sensor, increasing the probability of correct detection of the fire source, increasing the sensor operation speed and reliability of determining coordinates of the fire source, increase in sensitivity, reliability and interference immunity of the sensor, which enables to improve the efficiency of a fire-extinguishing system or explosion-suppression.

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