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    • 5. 发明申请
    • Method, system and apparatus for measuring temperature with cold junction compensation
    • 冷端补偿测量温度的方法,系统和设备
    • US20050047479A1
    • 2005-03-03
    • US10924067
    • 2004-08-23
    • William UnderwoodChristopher WestonHarbanse DeoganRoderick Brown
    • William UnderwoodChristopher WestonHarbanse DeoganRoderick Brown
    • G01K7/12G01K7/00
    • G01K7/12
    • A cold junction compensation system for a temperature measurement device having a processing circuit is disclosed. The cold junction compensation system includes a cold junction temperature sensor arranged in signal communication with the processing circuit, a thermal coupler in thermal communication with the cold junction temperature sensor, and first and second contacts each in thermal communication with the thermal coupler and in electrical isolation with each other, each contact arranged for signal communication with the processing circuit and arranged for signal communication with a hot junction temperature sensor. A signal from the hot junction temperature sensor is communicated to the processing circuit via the first and second contacts, the cold junction temperature sensor senses the cold junction temperature at the first and second contacts via the thermal coupler, and a signal representative of the cold junction temperature is communicated to the processing circuit for enabling a cold junction compensation calculation.
    • 公开了一种具有处理电路的温度测量装置的冷端补偿系统。 冷端补偿系统包括布置成与处理电路信号通信的冷端温度传感器,与冷端温度传感器热连通的热耦合器,以及与热耦合器热电连接的电气隔离的第一和第二触点 彼此相连,每个触点被布置用于与处理电路进行信号通信,并被布置成与热结温度传感器进行信号通信。 来自热端温度传感器的信号经由第一和第二触点传送到处理电路,冷端温度传感器通过热耦合器感测第一和第二触点处的冷端温度,以及代表冷端的信号 温度被传送到处理电路以实现冷端补偿计算。