Title:
GAS SENSOR
Document Type and Number:
WIPO Patent Application WO/2010/064650
Kind Code:
A1
Abstract:
Provided is a gas sensor with high detection sensitivity and low output signal noise. The gas sensor (102) is provided with a thermistor ceramic laminate (10), a catalyst electrode (11) that configures the catalyst electrode, an internal electrode (12) and external electrodes (13, 14). The catalyst electrode (11) produces heat by a gas to be sensed contacting the catalyst electrode (11), and the resistance value of the thermistor layer in the sensing part drops. The heat from the catalyst electrode (11) is transmitted directly to the thermistor layer without passing through an insulating layer or the like, so detection sensitivity is high. When configured so that heat from the sensing part is insulated by a hollow part (15) and dispersion is prevented, the thermal capacity of the sensing part will be even smaller. Thus, the gas sensor has high sensitivity and high responsiveness.
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Inventors:
MIURA TADAMASA (JP)
Application Number:
PCT/JP2009/070230
Publication Date:
June 10, 2010
Filing Date:
December 02, 2009
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
MIURA TADAMASA (JP)
MIURA TADAMASA (JP)
International Classes:
G01N27/16; G01N25/30
Domestic Patent References:
| WO2006085507A1 | 2006-08-17 |
Foreign References:
| JP2005098846A | 2005-04-14 | |||
| JP2003083058A | 2003-03-19 | |||
| JP2005300522A | 2005-10-27 | |||
| JPS62235555A | 1987-10-15 |
Attorney, Agent or Firm:
Kaede Patent Attorneys' Office (JP)
Patent business corporation Kaede Patent Attorneys' Office (JP)
Patent business corporation Kaede Patent Attorneys' Office (JP)
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