自整角机转换模块位置信号的数字化实现

Digitalization of angular position signal of selsyn conversion module

为解决各种位置随动控制系统中位置角度的检测,位置角速度、角加速度的反馈并实现其数字化等问题,将16ZSZ349B-02/4自整角机转换器应用到实际随动控制系统的位置反馈检测中。开展了自整角机转换器的工作原理、转换性能、电路接口的分析,建立了单片机MSP430Fe427与自整角机转换器之间的电路接口关系,提出了用自整角机转换器将角度模拟信号转换成数字信号,通过单片机对数据实时采集,并对采集的数字信号进行数字滤波,最终实现了位置信号的数字化。研究结果表明:用简易的软件计算代替复杂的硬件设计,节省了成本,提高了产品可靠性。

In order to solve the problems of detection and digitalization of angular position and feedback and digitalization of angular velocity and angular acceleration in position servo control system,the 116ZSZ349B-02/4 selsyn converter in position feedback detection circuit of servo control system was investigated.After the analysis of selsyn converter working principle,converting capability and circuit interface,the circuit interface relationship between single chip microcomputer MSP430Fe427 and the proposed selsyn converter was established.A method was presented to convert analog angular signal into digital signal with the proposed selsyn converter,which was collected timely and digitally filtered by microcomputer.The results show that reducing cost and improving reliability can be realized with simple software design instead of complex hardware design.