小型光电编码器动态误差检测

Dynamic Measurement for Small Size Photoelectric Encoder

为克服传统编码器检测系统制造成本贵、检测过程复杂、检测点数少、手动操作精度低、不能实现动态性能检测等缺点,设计了小型绝对式光电编码器动态误差检测系统,开展了对小型光电编码器动态误差检测的研究.对比分析了国内外传统光电编码器误差检测技术的优缺点,提出了采用简单易行的比较法对光电编码器进行动态误差检测的方法;建立了光电编码器动态误差检测系统,并完成了动态误差检测系统的关键技术设计;对所设计的动态误差检测系统进行性能测试,并利用该装置对某光电编码器进行动态误差检测.经过测试,该动态误差检测系统能够实现在0-90r/min转速下,对不高于16位的小型绝对式光电编码器进行动态误差检测,其检测精度为1.22″.

A dynamic measurement system of small absolute photoelectric encoder has been designed in this paper to overcome the defects of traditional measurement system in high cost, complex measurement process, insufficient testing points, and low precision of manual manipulation and unfeasibility of dynamic detecting characteristics. This system has conducted a further research and measurement in dynamic error of small absolute photoelectric encoder. Firstly, based on the comparison of the domestic and foreign traditional error detection method, a kind of simple and practicable dynamic detection method has been proposed. Secondly, photoelectric encoder dynamic measurement equipment has been set up and the key technology has been designed in this paper. Lastly, the testing of this equipment has been completed by detecting an encoder. The precision of equipment is 1.22＂ for no more than 16 binary bits when working at speed of 0-90 r/min. The measurement equipment possesses many advantages, such as low-cost, convenience, diversification, speediness and full automation which provides strong support for the dynamic measurement of small absolute photoelectric encoder.