Capacitive encoder is a novel sensing technology developed from the traditional capacitive technique. Aiming at the high-precision testing requirement of the relative angle between the turret and its chassis, a high-precision measurement method of turret dynamic angle based on capacitive encoder was proposed. In view of the turret environment, the installation method of the capacitive angle measurement was designed and the working principle was analyzed. With the design of the mechanical structure and the subsequent circuit, the system stability and reliability of the capacitive encoder were improved. Laboratory angle calibration and field range experiments for angle measuring device were carried out. Results show that the system which obtains the function of power protection, location identification and zero-memory can meet the actual demands and the measurement accuracy is up to 60''.%容栅编码器是在传统容栅技术上发展起来的新型传感技术,针对目前炮塔相对地盘转角的高精度测试需求,提出了一种基于容栅编码器测量高精度动态转角的方法.结合炮塔环境,设计了容栅测角装置的安装方式,分析了测角装置的工作原理,通过机械结构设计和容栅编码器后续的电路设计,提高了其工作的稳定性与可靠性.对测角装置分别进行了实验室角度标定与某靶场实地试验,结果表明:该测角系统能够满足实际需求,具有断电保护、通电位置识别及零位记忆等功能,测试精度达60″.
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