本文介绍作为数字称重指示器核心的模一数转换电路(简称“a/d”),它将力传感器产生的经过调节的模拟信号转换成数字信号,以便于由仪器中的微计算机进行计算、显示和传输。让我们考察一种称为积分式、双斜率 a/d电路的常用 a/d 电路,它是以积分放大器为主 This article describes the analog-to-digital conversion circuit (“a / d”), the core of a digital weighing indicator, that converts a conditioned analog signal produced by a force sensor into a digital signal so that the microcomputer in the instrument Calculate, display and transmit. Let us examine a commonly used a / d circuit called integral, double slope a / d circuit, which is based on the integral amplifier