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. 29, 2013
Filed:
Dec. 03, 2009
Satoshi Teramoto, Nisshin, JP;
Hirotaka Onogi, Kakamigahara, JP;
Koji Shiotani, Kasugai, JP;
Kenji Kato, Nagoya, JP;
Takashi Kawai, Komaki, JP;
Satoshi Teramoto, Nisshin, JP;
Hirotaka Onogi, Kakamigahara, JP;
Koji Shiotani, Kasugai, JP;
Kenji Kato, Nagoya, JP;
Takashi Kawai, Komaki, JP;
NGK Spark Plug Co., Ltd., Aichi, JP;
Abstract
There is provided a control apparatus for a gas sensor, which has a sensor element equipped with first and second oxygen pumping cells. The sensor control apparatus is configured to drive the first oxygen pumping cell to adjust the oxygen concentration of gas under measurement, drive the second oxygen pumping cell to produce a flow of electric current according to the amount of oxygen pumped out of the oxygen concentration adjusted gas by the second oxygen pumping cell, perform specific drive control to control the amount of oxygen pumped by the second oxygen pumping cell to a predetermined level after startup of the sensor element and before the application of the drive voltage between the electrodes of the second oxygen pumping cell.