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公开(公告)号：US20220170872A1
公开(公告)日：2022-06-02
申请号：US17616988
申请日：2020-05-19
Applicant: Nissha Co., LTD.
Inventor： Shunsuke Sawasaka , Masaya Fukuda , Harumi Kuribayashi
Abstract: The 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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公开(公告)号：US11692957B2
公开(公告)日：2023-07-04
申请号：US17616988
申请日：2020-05-19
Applicant: Nissha Co., LTD.
Inventor： Shunsuke Sawasaka , Masaya Fukuda , Harumi Kuribayashi
CPC classification number: G01N27/12 , G01N33/007
Abstract: The 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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