Invention Grant
- Patent Title: Gas and humidity sensing element
- Patent Title (中): 气体和湿度传感元件
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Application No.: US475949Application Date: 1983-03-16
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Publication No.: US4456902APublication Date: 1984-06-26
- Inventor: Yoshiharu Komine , Takao Sawada
- Applicant: Yoshiharu Komine , Takao Sawada
- Applicant Address: JPX Tokyo
- Assignee: Mitsubishi Denki Kabushiki Kaisha
- Current Assignee: Mitsubishi Denki Kabushiki Kaisha
- Current Assignee Address: JPX Tokyo
- Priority: JPX57-51826 19820330; JPX57-51827 19820330; JPX57-51828 19820330; JPX57-51854 19820330
- Main IPC: G01N27/12
- IPC: G01N27/12 ; H01L7/00 ; G01N27/46
Abstract:
A gas and humidity sensing element in a single integral structure made of a base plate of apatite ceramics, on which a particular metal oxide such as tin oxide, zinc oxide, or composite oxide of titanium and niobium is provided. The sensing element has a function of sensing gas and humidity with outstanding sensitivity to bad smell gas and alcoholic gas, in which the humidity is sensed and measured by variations in electrical resistance of the apatite ceramic base plate and the bad smell gas such as hydrogen sulfide, methyl mercaptan, etc. is sensed and measured by variations in electrical resistance of the metal oxide.
Public/Granted literature
- US5620785A Meltblown barrier webs and processes of making same Public/Granted day:1997-04-15
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