CONCENTRATION RATIO CALCULATION METHOD FOR TWO-COMPONENT GAS AND CONCENTRATION CALCULATION METHOD FOR GAS TO BE DETECTED

CONCENTRATION RATIO CALCULATION METHOD FOR TWO-COMPONENT GAS AND CONCENTRATION CALCULATION METHOD FOR GAS TO BE DETECTED

ObjectA method that highly accurately obtains a concentration of a detection target gas using two gas sensor elements is provided. A method that obtains a concentration ratio of a two component gas using one gas sensor element is also provided.Solution meansThe method for calculating concentration r...

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Hauptverfasser: SAWASAKA, Shunsuke, FUKUDA, Masaya, KURIBAYASHI, Harumi
Format: Patent
Sprache:eng ; fre ; ger
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INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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creator SAWASAKA, Shunsuke
FUKUDA, Masaya
KURIBAYASHI, Harumi
description ObjectA method that highly accurately obtains a concentration of a detection target gas using two gas sensor elements is provided. A method that obtains a concentration ratio of a two component gas using one gas sensor element is also provided.Solution meansThe method for calculating concentration ratio includes: (a) heating a gas sensor element to a temperature at which both of two gas components introduced in a gas sensor element react, and maintaining the temperature for a predetermined period to measure an electrical resistance value of the gas sensor element; (b) heating the gas sensor element to a temperature at which only any of the two gas components reacts, and maintaining the temperature for a predetermined period to measure an electrical resistance value of the gas sensor element; and (c) calculating a concentration ratio of the two gas components based on a combination of the electrical resistance value in (a) and the electrical resistance value in (b).
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subjects INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
title CONCENTRATION RATIO CALCULATION METHOD FOR TWO-COMPONENT GAS AND CONCENTRATION CALCULATION METHOD FOR GAS TO BE DETECTED
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