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:
Jan. 12, 2016
Filed:
Mar. 04, 2009
Yasuhiro Ishiguro, Komaki, JP;
Takayuki Sumi, Nagoya, JP;
Akihiro Kobayashi, Nisshin, JP;
Hisashi Sasaki, Konan, JP;
Koji Shiotani, Kasugai, JP;
Yasuhiro Ishiguro, Komaki, JP;
Takayuki Sumi, Nagoya, JP;
Akihiro Kobayashi, Nisshin, JP;
Hisashi Sasaki, Konan, JP;
Koji Shiotani, Kasugai, JP;
NGK SPARK PLUG CO., LTD., Aichi, JP;
Abstract
An NOsensor control apparatus () is connected to an NOsensor () which includes a first pumping cell () and a second pumping cell () through which a second pumping current flows corresponding to an NOconcentration in a to-be-measured gas. The NOsensor control apparatus () includes a first pumping current detection unit; a second pumping current detection unit; an oxygen concentration calculation unit () for calculating oxygen concentration on the basis of the first pumping current and corrected in accordance with the pressure of the to-be-measured gas, oxygen (first) pressure correction information set for the NOsensor, and pressure information; and an NOconcentration calculation unit () for calculating NOconcentration on the basis of the first pumping current and corrected in accordance with pressure of the to-be-measured gas, NO(second) pressure correction information set for the NOsensor, and pressure information.