Title:
GAS SENSOR
Document Type and Number:
Japanese Patent JP2015135320
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a gas sensor configured to improve the accuracy of detecting specific gas component concentration.SOLUTION: A gas sensor 1 includes a solid electrolyte 2, a gas chamber 101, a reference gas chamber, a pump cell, a monitor cell, and a sensor cell. In positions in the solid electrolyte 2 where a pump electrode 21, a monitor electrode 22, and a sensor electrode 23 are installed, a space width W0 of the gas chamber 101 is fixed in a width direction W orthogonal to a flow direction F of a gas G. An amount of displacement ΔX1 of a center position O2 in a width direction W of a gap S between the monitor electrode 22 and the sensor electrode 23, with respect to a center position O1 in a width direction W of the pump electrode 21, satisfies ΔX1≤1/4 W1, in which width of the pump electrode 21 is W1. A position of a side face 221 of the monitor electrode 22 and a position ΔY1 of a side face 231 of the sensor electrode 23 from the center position O1 in the width direction W of the pump electrode 21 satisfies ΔY1≤1/2 W1.
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Inventors:
NAKATO MITSUNOBU
MIZUTANI KEIGO
ARAKI TAKASHI
TODO YUSUKE
MIZUTANI KEIGO
ARAKI TAKASHI
TODO YUSUKE
Application Number:
JP2014235747A
Publication Date:
July 27, 2015
Filing Date:
November 20, 2014
Export Citation:
Assignee:
NIPPON SOKEN
DENSO CORP
DENSO CORP
International Classes:
G01N27/416
Domestic Patent References:
| JP2011058834A | 2011-03-24 | |||
| JP2003149199A | 2003-05-21 | |||
| JP2000321238A | 2000-11-24 | |||
| JP2003166973A | 2003-06-13 | |||
| JP2015045581A | 2015-03-12 |
Foreign References:
| WO2015025924A1 | 2015-02-26 |
Attorney, Agent or Firm:
Patent Business Corporation Aichi International Patent Office
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