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1.发明授权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
公开(公告)号：US4992965A
公开(公告)日：1991-02-12
申请号：US294606
申请日：1988-11-30
申请人： Heinz Holter , Hanns Rump , Helmut Vietze
发明人： Heinz Holter , Hanns Rump , Helmut Vietze
CPC分类号： B60H1/008 , B60H3/0085 , G01N27/122
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.
摘要翻译： 用于评估由半导体气体传感器产生的信号的电路为操纵机动车辆及其空调系统中的再循环空气阀提供了可靠的控制，并且包括与积分器相连的分压器，该积分器具有大于所需时间的时间常数 达到机动车外的有毒气体的高峰。
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公开(公告)号：US5481211A
公开(公告)日：1996-01-02
申请号：US181749
申请日：1994-01-21
CPC分类号： H02H11/002 , G01R19/14
摘要： A measurement circuit in the output circuit of a sensor detects the polarity of a source to which a load is connected. The detection of one of the two polarities establishes one of two states which is stored in a storing element and the correct one of two drivers is switched to the output terminals. This state is maintained for as long as there is no change to the polarity at the output terminals. If the terminals are interchanged, then the measurement circuit correctly restores the stored state, so that the correct driver is associated with the load in each case. If positive instead of negative switching sensors are required, there is no need to replace the equipment. When the voltage is turned on, the equipment is initialized, so that it is set in accordance with the new circumstances.
摘要翻译： 传感器的输出电路中的测量电路检测负载连接的源的极性。 两个极性中的一个的检测建立存储在存储元件中的两个状态之一，并且将两个驱动器中的正确的一个切换到输出端。 只要输出端子的极性没有变化，就保持该状态。 如果端子互换，则测量电路正确恢复存储状态，以便在每种情况下正确的驱动器与负载相关联。 如果需要使用正负转换传感器，则无需更换设备。 当电压开启时，设备被初始化，以便根据新的情况进行设置。
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