本文介绍一种电子式面积测量微机系统,它采用 x-y 记录仪对物体进行扫描,当传感器扫过物体时,发出 TTL 信号。微机对这些信号采样、编程,按辛普森公式计算面积,然后用七划显示器显示测量结果。本文还研究了测量误差的来源及其特性和减小这类误差的方法。用这种系统还可测量距离参数和确定物体的矩心位置。 This article describes an electronic area measurement microcomputer system, which uses x-y recorder to scan the object, when the sensor swept through the object, the TTL signal. The computer samples and programs these signals, calculates the area according to Simpson’s formula, and then displays the measurement results with a seven-segment display. This paper also studies the sources of measurement errors and their characteristics and ways to reduce such errors. With this system it is also possible to measure distance parameters and determine the centroid position of an object.