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在工业测温中,常用热电阻或热电偶作为检测元件与指示、记录或调节等显示仪表配套使用。为了保证测量精确度,从显示仪表到检测元件的外部线路的电阻值有一定要求。外部线路电阻值,对热电阻测温回路是指连接热电阻体的每根导线的阻值;对热电偶测温回路是指补偿导线、参比端补偿器及热电偶本体的电阻之和。不同型号的仪表,对外部线路电阻值的规
In the industrial temperature measurement, commonly used thermal resistance or thermocouple as a detection element and instructions, recording or adjustment supporting the use of display instruments. In order to ensure the measurement accuracy, there is a certain requirement for the resistance value of the external circuit from the display instrument to the detection element. External circuit resistance, the thermal resistance of the thermocouple loop refers to the resistance of each wire connected to the thermocouple; thermocouple thermocouple loop refers to the compensation wire, the reference junction compensator and thermocouple body and the sum of the resistance. Different types of instruments, the resistance of the external circuit regulations