Digitalization of angular position signal of selsyn conversion module
ZHAO Jinyuan1, HUANG Xingcheng2, LIU Zhili2, ZHOU Yunshui2
(1.Military Affairs Office of Navy in Hangzhou Area，Hangzhou 310012, China;
2. Zhijiang College,Zhejiang University of Technology, Hangzhou 310024,  China)
Abstract:  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.
Key words: selsyn;  signalization；angular position; servo control sysem