Thermocouple system having a PN junction for cold junction compensation
    6.
    发明授权
    Thermocouple system having a PN junction for cold junction compensation 失效
    具有用于冷端补偿的PN结的热电偶系统

    公开(公告)号:US3921453A

    公开(公告)日:1975-11-25

    申请号:US44931374

    申请日:1974-03-08

    Applicant: CHRYSLER CORP

    CPC classification number: G01K7/04 G01K7/13 Y10T307/773

    Abstract: A thermocouple system for catalytic controllers uses a PN junction at the cold junction for cold junction compensation. The linearity of the voltage drop across the PN junction permits accurate scaling for direct reading of the temperature at the output of the system. A switching circuit is described wherein the desired switching temperature is electrically entered into the circuit and when the compensated temperature signal is equal to the entered signal, the output of the switching circuit is switched.

    Abstract translation: 用于催化控制器的热电偶系统在冷接点处使用PN结进行冷端补偿。 PN结上的电压降的线性度可以准确地缩放,直接读取系统输出端的温度。 描述了一种切换电路,其中期望的开关温度电输入到电路中,并且当补偿的温度信号等于输入的信号时,切换电路的输出被切换。

Patent Agency Ranking