ガスセンサ - 株式会社デンソー

Title:

ガスセンサ

Document Type and Number:

Japanese Patent JP7010250

Kind Code:

B2

Abstract:

A gas sensor includes a measurement chamber, a reference gas chamber, a first cell that includes a first electrode in the measurement chamber and a second electrode in the reference gas chamber, and a second cell that includes a third electrode in the measurement chamber and a fourth electrode in the reference gas chamber. The gas sensor detects a first current that flows through the first cell, detects a second current that flows through the second cell, calculates a concentration of a specific gas component based on a detected value of the second current, determines whether a change has occurred in an oxygen concentration in the reference gas chamber based on a detected value of the first current, and corrects the detected value of the second current when the gas sensor determines that a change has occurred in the oxygen concentration in the reference gas chamber.

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Inventors:

Kazumasa Higashi
Yusuke Kawamoto

Application Number:

JP2019016215A

Publication Date:

January 26, 2022

Filing Date:

January 31, 2019

Export Citation:

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Assignee:

株式会社デンソー

International Classes:

G01N27/416; G01N27/26

Domestic Patent References:

JP2018128463A
JP2015230220A
JP201545581A
JP201564341A
JP2016156667A

Foreign References:

WO2015030165A1
WO2015025924A1

Attorney, Agent or Firm:

Tohru Kamada
Takuma Tsuda

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