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THE SUPPLY CIRCUIT OF THE BASIC POLAR OXYGEN PARTIAL PRESSURE CONTROL CURRENT FOR OXYGEN SENSING ELEMENT

机译:氧气传感元件基本极性氧气分压控制电流的供应电路

摘要

An oxygen sensor has a solid electrolyte layer placing a reference electrode and a measurement electrode. A control circuit producing AC current through the electrolyte between the electrodes to establish a reference oxygen partial pressure at the reference electrode- electrolyte interface includes a comparator for reference voltage and output between the electrodes, a multiplier for the output voltage, and a control current regulator utilizing comparator and multiplier outputs so that current intensity depends on output voltage value when one voltage is higher than the other to compensate variations duing to temperature.
机译:氧传感器具有放置参考电极和测量电极的固体电解质层。产生通过电极之间的电解质的交流电流以在参考电极-电解质界面处建立参考氧分压的控制电路,包括用于参考电压和电极之间输出的比较器,用于输出电压的乘法器以及控制电流调节器利用比较器和乘法器输出,以便当一个电压高于另一个电压时,电流强度取决于输出电压值,以补偿由于温度引起的变化。

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