Title:
センサ素子及びガスセンサ
Document Type and Number:
Japanese Patent JP7299852
Kind Code:
B2
Abstract:
A sensor element includes an element body including an oxygen-ion-conductive solid electrolyte layer, the element body having a longitudinal direction, a measurement electrode disposed in the element body, a reference electrode disposed in the element body so as to come into contact with a reference gas, and a heater configured to heat the solid electrolyte layer. A center of gravity of the reference electrode overlaps the measurement electrode as viewed in a thickness direction of the solid electrolyte layer. A length of each of the reference electrode and the measurement electrode in a front-rear direction is less than or equal to 1.1 mm, the front-rear direction being a direction along the longitudinal direction of the element body. An area of the reference electrode as viewed in the thickness direction is greater than or equal to 1.0 mm2.
Inventors:
Yusuke Watanabe
Shiho Iwai
Shiho Iwai
Application Number:
JP2020045824A
Publication Date:
June 28, 2023
Filing Date:
March 16, 2020
Export Citation:
Assignee:
Nippon Insulator Co., Ltd.
International Classes:
G01N27/416
Domestic Patent References:
| JP2018173319A | ||||
| JP2013140175A | ||||
| JP2012211863A | ||||
| JP2015200642A | ||||
| JP2015062013A | ||||
| JP2005300472A | ||||
| JP2015200643A | ||||
| JP2017201246A | ||||
| JP2019052853A | ||||
| JP2020153931A |
Foreign References:
| US20130220834 |
Attorney, Agent or Firm:
Patent Attorney Corporation ITEC International Patent Office