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在计量检定规程JJG187—86中第15条规定了配热电偶用动圈式温度仪表不同准确度等级的内阻值,即1.0级的内阻不应小于200Ω,1.5级的内阻不应小于150Ω。否则,其准确度难以保证。规程规定,此种仪表的内阻必须“用补偿法进行测量”,这就是说,不能用万用表直接测量,否则测量不准确,且容易损坏动圈表的
Article 15 of JJG187-86 specifies the internal resistance of different accuracy grade of dynamic temperature measuring instrument with thermocouple, that is, the internal resistance of 1.0 grade shall not be less than 200Ω, and the internal resistance of 1.5 grade shall not be less than 150Ω. Otherwise, its accuracy is difficult to guarantee. Regulation provides that the internal resistance of such instruments must be “measured by the compensation method”, that is to say, can not be directly measured with a multimeter, or the measurement is not accurate, and easily damaged dynamic watch