感应同步器测角系统的电路设计与软件补偿

为了实现高速高精度电机扫描控制，设计了基于高性能追踪型轴角转换器RDC19220的绝对式圆感应同步器测角系统。该系统包括激磁电路、信号调理电路、轴角转换电路以及数字逻辑电路。为了提高测角精度，降低系统噪声对输出角度数据的影响，设计了低噪声的模拟信号处理电路，同时对绝对角度误差修正与数据融合的方法进行了研究与算法实现。实验表明，本系统能够有效地消除噪声，输出角度分辨率可以做到0.2″。

Circuit design and software compensation of inductosyn angle measuring system

In order to implement a high-speed and high-accuracy motor scanning control system,an angle measuring system is developed based on absolute round inductosyn and good-performing tracking resolver-to-digital converter(RDC).It consists of exciter circuits,signal conditioning circuits,RDC circuits and digital processing circuits.In order to improve the measurement accuracy and protect the output signal from the system noise,low-noise analog circuits is designed.The means of absolute angle data fusion and error correcting is studied and implemented using algorithm.Experiment results show that the system greatly reduced noise and output resolution is 0.2″.