发明授权
US5211053A Hot gas sensor device with improved thermal isolation from carrier plate
失效
热载体传感器装置,具有改进的载体板的热隔离
- 专利标题: Hot gas sensor device with improved thermal isolation from carrier plate
- 专利标题(中): 热载体传感器装置,具有改进的载体板的热隔离
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申请号: US838545申请日: 1992-02-19
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公开(公告)号: US5211053A公开(公告)日: 1993-05-18
- 发明人: Peter Nolting , Martin Holland , Botho Ziegenbein , Guenther Stecher , Detlef Baresel
- 申请人: Peter Nolting , Martin Holland , Botho Ziegenbein , Guenther Stecher , Detlef Baresel
- 申请人地址: DEX Stuttgart
- 专利权人: Robert Bosch GmbH
- 当前专利权人: Robert Bosch GmbH
- 当前专利权人地址: DEX Stuttgart
- 优先权: DEX4105025 19910219
- 主分类号: G01N27/04
- IPC分类号: G01N27/04 ; G01N27/12
摘要:
A gas sensor device has a carrier plate of ceramic or glass. The carrier has apertures which leave only strips in a spiral configuration connecting a middle region of the carrier to the outer region thereof. The apertures may be mere slits separating the connection strips or they may be apertures providing larger air gaps. On each middle region so provided on the carrier a sensor element is located that has two electrodes and a sensitive layer which establishes a conducting connection between the electrodes. The electrodes and the sensitive layer are directly applied to the upper surface of the middle region. The two electrodes are comb shaped and are placed in inter-digital configuration to define a meandering gap between them. On the underside of the middle region of the carrier a heating element for the sensor element is provided and, if desired, also a temperature measuring resistance for regulating the temperature produced by a heating resistor. Conducting paths are located on the connecting strips between the middle region and the outer region of the carrier for connecting a sensor element and its heater to circuits on the outer region of the carrier plate.
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