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:
Feb. 01, 2005
Filed:
Feb. 26, 2003
Satoshi Hada, Kariya, JP;
Eiichi Kurokawa, Okazaki, JP;
Tomoo Kawase, Nagoya, JP;
Toshiyuki Suzuki, Handa, JP;
Satoshi Haseda, Okazaki, JP;
Satoshi Hada, Kariya, JP;
Eiichi Kurokawa, Okazaki, JP;
Tomoo Kawase, Nagoya, JP;
Toshiyuki Suzuki, Handa, JP;
Satoshi Haseda, Okazaki, JP;
Denso Corporation, , JP;
Abstract
A gas concentration measuring apparatus which has a gas sensor designed to measure, for example, the concentrations of Oand HOcontained in exhaust emissions of an automotive engine is provided. The apparatus includes a signal processing circuit which converts a current signal outputted from the gas sensor as a function of the concentration of either of Oand NOinto a voltage signal. The gas sensor and the signal processing circuit are connected electrically through a conductor. The conductor has a length which is determined as a function of a level of the current signal outputted from the gas sensor. The weaker the level of the current signal is, the shorter the length of the conductor. This minimizes addition of electrical noises to the current signal outputted from the gas sensor.