提出了一种低成本、高精度的测角方案,即不占用转台内部结构空间,以便于汇流环、水绞链的安装维护,又能保证转台角度的高精度测量。文中对测角系统精度误差进行了分析计算,并对系统的关键技术和软硬件实现方法进行了研究;介绍了基于多同步轮系双通道旋转变压器的高精度角度测量系统,通过双编码模块对粗、精速比为1:8 的双同步轮系角度进行数据融合,满足了实时高精度测量需求,该方法具有很高的实际工程应用价值。该测量系统同样适用于粗精速比为1:2n 的角度测量系统。

A kind of low-cost and high-accuracy angle measurement proposal is introduced, which does not occupy the internal structural space for convenient installation and maintenance of slip ring and rotary joint, and ensures the high-accuracy measurement of rotary table angle. The accuracy error of angle measurement system is analysed and calculated in details, and the key technologies and the realization method of software and hardware of system are studied, and the high-accuracy angle measurement system based on multi-synchronous gear dual-channel resolver is introduced, which satisfies the real-time high-accuracy measurement requirement by data fusion of dual-encoding board for dual-synchronous gear whose coarse-to-fine ratio is 1：8. The method possesses the high application value is in practical engineering. The measurement system also can be applied to the angle measurement system whose coarse-to-fine ratio is 1：2n .

TN957.52