鉴幅型测角系统动态误差建模研究

Dynamic error model of angular measuring system of amplitude discrimination mode

首先简要介绍采用感应同步器进行角位置测量技术 ,并给出分段绕组激磁、连续绕组输出的鉴幅型测角原理 ,在对此方案产生的静态误差分析的基础上 ,从两相电压存在幅值误差和函数关系不准、两相电压不同相、波形失真等三方面对此方案产生的动态误差进行建模 ,分析了该系统的动态误差产生的原因 ;通过详细计算 ,定量地分析动态误差对系统产生的影响 ,为实际工程应用提供了理论基础 ,同时提出工程应用中减小误差的方法 。

By introducing the angular measuring technology of Inductosyn. The angular measuring principle of amplitude discrimination mode is presented while the inductosyn is working with the bi phase excitation and single phase output . By analyzing the static errors,the model of dynamic errors is established from the amplitude and function errors of double phase voltage,out phase of double phase voltage and waveform distortion.The reasons and effects of dynamic errors are analyzed through detailed calculation.In order to reduce the errors,an effective method has been suggested.