The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 26, 2024
Filed:
Mar. 18, 2021
Ngk Insulators, Ltd., Aichi, JP;
Takayuki Sekiya, Nagoya, JP;
Yusuke Watanabe, Nisshin, JP;
NGK INSULATORS, LTD., Nagoya, JP;
Abstract
A sensor element includes an element body having a measurement-object gas flow section being provided therein, a first measurement pump cell that includes a first measurement electrode being disposed in a first measurement chamber and a first outer measurement electrode and that pumps out oxygen produced in a first measurement chamber, and a second measurement pump cell that includes a second measurement electrode being disposed in a second measurement chamber and a second outer measurement electrode and that pumps out oxygen produced in a second measurement chamber. The measurement-object gas flow section is configured such that a measurement-object gas passes through an oxygen concentration adjustment chamber and a first measurement-electrode diffusion-rate-controlling section in this order and reaches the first measurement chamber and that the measurement-object gas passes through the first measurement chamber and a second measurement-electrode diffusion-rate-controlling section in this order and reaches the second measurement chamber.