Title:
SENSOR ELEMENT
Document Type and Number:
WIPO Patent Application WO/2023/189833
Kind Code:
A1
Abstract:
Provided is a sensor element with which it is possible to inhibit a decrease in detection accuracy due to long-term use of a gas sensor. The sensor element 101 detects a measurement target gas in a gas subject to measurement, the sensor element 101 including: an elongated plate-shaped base part 102 including oxygen-ion-conductive solid electrolyte layers 1, 2, 3, 4, 5, and 6; a gas-subject-to-measurement channel part 15 formed from one longitudinal end part of the base part 102; an inside main pump electrode 22 installed on the inner surface of the gas-subject-to-measurement channel part 15; a porous coating layer 25 covering at least the electrode end part of the inside main pump electrode 22 on the side nearer the one longitudinal end part of the base part 102; and a measurement electrode 44 installed at a position, on the inner surface of the gas-subject-to-measurement channel part 15, further from the one longitudinal end part of the base part 102 than the inside main pump electrode 22.
Inventors:
IWAI SHIHO (JP)
INAGAKI SOTARO (JP)
TOMIOKA RYOTA (JP)
SEKIYA TAKAYUKI (JP)
INAGAKI SOTARO (JP)
TOMIOKA RYOTA (JP)
SEKIYA TAKAYUKI (JP)
Application Number:
PCT/JP2023/010918
Publication Date:
October 05, 2023
Filing Date:
March 20, 2023
Export Citation:
Assignee:
NGK INSULATORS LTD (JP)
International Classes:
G01N27/416
Domestic Patent References:
| WO2019188613A1 | 2019-10-03 |
Foreign References:
| JP2021124382A | 2021-08-30 | |||
| JP2009014706A | 2009-01-22 | |||
| JP2010237044A | 2010-10-21 |
Attorney, Agent or Firm:
OKADA, Masahiro et al. (JP)
Download PDF: