Flame detection system and received light quantity measuring method

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11428575
APP PUB NO 20200300706A1
SERIAL NO

16820034

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A flame detection system includes: an optical sensor that detects light generated from a light source; an applied voltage generating circuit that periodically applies a drive pulse voltage to the optical sensor, discharge determining portion that detects a discharge from the optical sensor, a discharge probability calculating portion that calculates a discharge probability based on a number of times of application of the drive pulse voltage and a number of times of discharge detected in the a first state in which the optical sensor is shielded from light and a second state in which the optical sensor can receive light, a sensitivity parameter storing portion storing known sensitivity parameters of the optical sensor; and a received light quantity calculating portion that calculates the received light quantity by the optical sensor in the second state based on the sensitivity parameters and the discharge probabilities calculated in the first and second states.

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Patent Owner(s)

Patent OwnerAddress
AZBIL CORPORATIONCHIYODA-KU TOKYO 100-6419

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Mori, Raita Tokyo, JP 19 47
Onuma, Shun Tokyo, JP 6 9

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