Sensor device, and disaster prevention system and electronic equipment each having sensor device incorporated therein

Sensor device, and disaster prevention system and electronic equipment each having sensor device incorporated therein

The sensor device is capable of detecting the occurrence of a fire and the type of the fire. The sensor device includes a detection element (1) made of an organic semiconductor element or an inorganic semiconductor element which varies in characteristic value (e.g. resistance) in response to both ga...

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Hauptverfasser: TAKAHASHI, NARIMASA, HASHIMOTO, RYUKICHI, KIMURA, TETSUO, TANAKA, SEIICHI
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ALARM SYSTEMS
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
ORDER TELEGRAPHS
PHYSICS
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
TESTING
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creator TAKAHASHI, NARIMASA
HASHIMOTO, RYUKICHI
KIMURA, TETSUO
TANAKA, SEIICHI
description The sensor device is capable of detecting the occurrence of a fire and the type of the fire. The sensor device includes a detection element (1) made of an organic semiconductor element or an inorganic semiconductor element which varies in characteristic value (e.g. resistance) in response to both gas produced in a flaming-type fire and a smouldering-type fire. The variation in resistance caused by gas produced in a flaming-type fire is different in polarity from the variation caused by gas produced in a smouldering-type fire. The resistance of the detection element (1) is extracted by a resistance extractor (11) and then fed to a resistance decrease discriminator (12) and a resistance increase discriminator (13), whereby a decrease or increase in resistance of the detection element (1) is discriminated. An information output circuit (14) outputs a predetermined signal (Y1, Y2, Y3) depending on the discrimination results provided by the discriminators (12, 13), to thereby indicate occurrence of a fire (signal Y1) and the type of the fire (signal Y2 or signal Y3).
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subjects ALARM SYSTEMS
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
ORDER TELEGRAPHS
PHYSICS
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
TESTING
title Sensor device, and disaster prevention system and electronic equipment each having sensor device incorporated therein
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