基于轴角编码器二阶跟踪微分的角加速度测量

角加速度是描述旋转机构工作状态的一项重要参数。常用压力或压电传感器测量角加速度的方法存在易受待测设备自身振动干扰的问题。本文基于高精度绝对式光电轴角编码器，提出采用二阶跟踪微分处理的方法，以准确测量发射车起竖臂工作过程中的角加速度。

Angular Acceleration Measurement Based on Second-order Tracking Differentiator of Angular Encoder

The angular acceleration is an important parameter to describe the work status of rotary device.The general method using pressure or piezoelectricity sensor to measure angular acceleration exist the disadvantage that can be easily influenced by the measured device self-vibra- tion.This paper,based on highly accurate absolute photoelectric-angular encoder,presents the method adopts second-order tracking differentia- tot,and to exactly measure angular acceleration of launch truck' s rotary arm.