中文摘要：

介绍了旋转变压器功能和特点以及应用的背景,为了求出旋转变压器的角度位置信号,采用高精度电压采集芯片AD7656,通过测量旋转变压器的两路路输出电压和一路激励电压,计算其电压的比值,提出了一种求解旋变角度的反正切算法;重点介绍了模数转换芯片AD7656以及其硬件设计电路,和求解反正切函数的具体的算法流程图,该算法具有简单,可靠的特点;实验结果表明该系统设计合理,简单,可靠,旋变角度测量算法能够满足一般要求,对出现的误差结果进行了分析,为下次研究工作做了准备.

英文摘要：

Describes the functions,background applications and features of the resolver,in order to calculate the angle position of the resolver signals,this paper choose AD7656 precision chip,proposed the resolver algorithm for calculating resolver angle by measuring the output voltage and excitation voltage of the resolver.Mainly introduce AD7656 and its hardware circuit design,and flowchart of the algorithm for arctangent.This algorithm is simple and reliable.Experimental results show that the system design is reasonable,measurement algorithms of resolver angle meets the requirements.Analyze the error for this result and prepare for the further study.