本文介绍一种用微机对电子电位差计进行自动检定的系统。该系统利用计算机控制Ｄ／Ａ转换器及精密电阻分压器，输出标准电势作为被检仪表的信号源；同时在仪表的指示机构中附加一指针位移读数传感器，示值位置通过Ａ／Ｄ转换器输入计算机进行检定结果的数据处理及打印输出等。 This article describes a computer with electronic potentiometer automatic verification system. The system uses a computer-controlled D / A converter and precision resistor divider to output the standard potential as the signal source of the instrument under test. At the same time, a pointer displacement reading sensor is attached to the indicating mechanism of the instrument, indicating the position by A / D conversion The computer inputs the result of the data processing and printout.