Title:
HUMIDITY SENSOR
Document Type and Number:
WIPO Patent Application WO/1986/000409
Kind Code:
A1
Abstract:
This invention is carried out by covering a humidity sensing element (7) and an electrode (9) in a thermally regenerating type humidity sensor, which is provided with a heater (8), with a casing (12) and a retainer (11), and setting the solid angle of an opening (6), by which the interior and exterior of the casing (12) or retainer (11) are communicated with each other, with respect to the central portion of the humidity sensing element (7) or casing (12) in the range of 1/1000-1/10 of a radian, to thereby prevent noxious, especially inorganic noxious substances from being deposited on the humidity sensing element (7) or electrode (9).
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Inventors:
MORI KEIJIRO (JP)
YAGI HIDEAKI (JP)
SHIMANO ICHIRO (JP)
ONOUCHI TOORU (JP)
YAGI HIDEAKI (JP)
SHIMANO ICHIRO (JP)
ONOUCHI TOORU (JP)
Application Number:
PCT/JP1985/000342
Publication Date:
January 16, 1986
Filing Date:
June 18, 1985
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
NGK SPARK PLUG CO (JP)
MATSUSHITA SEIKO KK (JP)
NGK SPARK PLUG CO (JP)
MATSUSHITA SEIKO KK (JP)
International Classes:
G01N27/12; G01N33/00; (IPC1-7): G01N27/12
Foreign References:
| JPS56109045U | 1981-08-24 | |||
| JPS58187762U | 1983-12-13 |
Other References:
See also references of EP 0191106A4
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