本文介绍一种数字微分电路,它采用标准逻辑元件来测定输入信号的导数,它可求出直线系统或旋转系统中元件的加速度或减速度,例如在运动的抛射体中所遇到的问题或测量转轴速度的变化等。导数的大小和符号在输出端以5比特表示,它可方便地与微处理机或数据采集系统中的其它处理装置连接。 This article presents a digital differential circuit that uses standard logic components to determine the derivative of the input signal. It can be used to find the acceleration or deceleration of components in linear systems or rotating systems such as those encountered in moving projectiles or Measurement of shaft speed changes. The size and sign of the derivative are represented on the output by 5 bits and are conveniently connected to the microprocessor or other processing device in the data acquisition system.