发明授权
US4992965A Circuit arrangement for the evaluation of a signal produced by a
semiconductor gas sensor
失效
用于评估由半导体气体传感器产生的信号的电路装置
- 专利标题： Circuit arrangement for the evaluation of a signal produced by a semiconductor gas sensor
- 专利标题（中）： 用于评估由半导体气体传感器产生的信号的电路装置
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申请号： US294606申请日： 1988-11-30
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公开(公告)号： US4992965A公开(公告)日： 1991-02-12
- 发明人: Heinz Holter , Hanns Rump , Helmut Vietze
- 申请人： Heinz Holter , Hanns Rump , Helmut Vietze
- 申请人地址： CHX Biel
- 专利权人： Eftag-Entstaubungs- und Fordertechnik AG
- 当前专利权人： Eftag-Entstaubungs- und Fordertechnik AG
- 当前专利权人地址： CHX Biel
- 优先权： CHX1308/87 19870402; CHX1306/87 19870402; WOXPCT/EP88/00269 19880331
- 主分类号： B60H1/24
- IPC分类号： B60H1/24 ; B60H3/00 ; G01N27/12 ; G01N33/00
摘要：
A circuit for the evaluation of a signal produced by a semiconductor gas sensor provides a reliable control for manipulating a recirculated air valve in motor vehicles and their air-conditioning systems and includes a voltage divider connected with an integrator having a time constant bigger than time needed for reaching a peak of noxious gases outside of the motor vehicle.