Title:
GAS CONCENTRATION DETECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/052707
Kind Code:
A1
Abstract:
Provided is a gas concentration detection device capable of quickly removing oxygen occluded by a sensor electrode and making activation earlier. A gas concentration detection device is provided with a measurement gas chamber 101, a solid electrolyte body 2, a pump cell 41, a sensor cell 42, a pump cell control unit 61, and a sensor cell detection unit 62. The pump cell control unit 61 applies a removal voltage V2 to the pump cell 41 at a startup time before gas concentration detection is carried out. The application of this removal voltage V2 decomposes the water present in the measurement gas chamber 101 and generates hydrogen as a reduction gas. This hydrogen removes the oxygen occluded by a sensor electrode 22 in the sensor cell 42.
Inventors:
TOUDOU YUUSUKE (JP)
KIMATA TAKEHITO (JP)
KAWAMOTO YUUSUKE (JP)
KIMATA TAKEHITO (JP)
KAWAMOTO YUUSUKE (JP)
Application Number:
PCT/JP2015/077967
Publication Date:
April 07, 2016
Filing Date:
October 01, 2015
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
G01N27/416
Foreign References:
| JP2002202285A | 2002-07-19 | |||
| JP2011058834A | 2011-03-24 | |||
| JP2000321238A | 2000-11-24 | |||
| JP2009145235A | 2009-07-02 | |||
| JP2004198351A | 2004-07-15 | |||
| JP2003149199A | 2003-05-21 |
Other References:
See also references of EP 3203223A4
Attorney, Agent or Firm:
KIKUCHI, YASUHIRO (JP)
Yasuhiro Kikuchi (JP)
Yasuhiro Kikuchi (JP)
Download PDF:
Previous Patent: TIRE FRAME AND TIRE
Next Patent: INFORMATION REPORTING METHOD, MOBILE COMMUNICATION SYSTEM, AND BASE STATION
Next Patent: INFORMATION REPORTING METHOD, MOBILE COMMUNICATION SYSTEM, AND BASE STATION