低成本实用型旋转变压器解码系统设计  

Design of decoding system for low cost practical rotary transformer

作　　者：张伟鹏 杨瑞峰 郭晨霞 ZHANG Weipeng;YANG Ruifeng;GUO Chenxia(School of Instrument and Electronics,North University of China,Taiyuan 030051,China)

机构地区：[1]中北大学仪器与电子学院,山西太原030051

出　　处：《现代电子技术》2020年第9期154-156,160,共4页Modern Electronics Technique

基　　金：山西省“1331工程”重点学科建设计划经费资助;山西省重点研发计划项目(201703D121028 2)。

摘　　要：目前,测量角位移的光电码盘体积大而且对使用环境要求苛刻,不适用于某些特殊场合,如果直接使用旋转变压器测量,又因为其输出信号中混合有许多杂波信号,所以给精确解码造成了很大困难。因此,设计通过使用AD公司的专用解码芯片AD2S1210配合STC89C52单片机以及外围的调理电路、滤波放大电路等构成的旋转变压器角位移测量系统来满足工程中角位移测量精度高的需求。通过搭建角位移测量系统的实验平台对实验数据进行分析后,得出最终解码角度误差可达到0.055°,可满足一般的应用需求,具有较高的实际应用价值。At present,the photoelectric code disc used to measure the angular displacement is large and demanding in service environment. Therefore,it is not suitable for some special occasions. However,if the resolver is directly used to measure the angular displacement,it is very difficult to decode accurately because of the clutter signals mixed in the output signal. Thus,in this design,the resolver angular displacement measurement system composed of AD2S1210 special decoding chip of AD company in combination with SCM STC89C52,as well as peripheral conditioning circuit and filter amplifier circuit,is used to meet the need of high precision of angle displacement measurement in engineering. The experimental platform of angle displacement measurement system is built and the experimental data are analyzed. It shows that the final decoding accuracy can reach 0.055°,which can meet the general application requirement. Therefore,it has a high value in the practical application.

关 键 词：角度跳变 角位移测量 巴特沃斯滤波 光电编码器 闭环角度跟踪法 角度解算 

分 类 号：TN76-34[电子电信—电路与系统] TM383.2[电气工程—电机]