电流型机车电测量仪表温度补偿方法及应用

摘要

The temperature coefficient of locomotive instrument is a key index in terms of instrument quality. It relates to the working accuracy and reliability of instrument in various temperature environments. The paper makes an analysis and illustrates that based on such three steps as movement measurement,compensation calculation and test verification,it can find the temperature compensation rule and make full temperature compenation for locomotive instrument with a current signal input.%机车仪表的温度系数是仪表质量的重要指标，关系到各种温度环境下仪表工作准确性和可靠性。分析并举例说明通过对仪表机芯的测量、补偿计算和试验验证3个步骤，可以找出温度补偿规律，对输入为电流信号的机车仪表进行温度全补偿。