Development of Low cost and high accuracy calibration system for rotary encoders and it's estimation

我的目标是为精确的旋转编码器开发一个低成本的校准系统，误差约为5”。采用等分平均法和时间转换法，即自定标法和高分辨率角度自动测量法，研制了定标系统。经验证，该系统可以在不需要高精度参考编码器、精确指标表和转速驱动系统的情况下，对误差为±0.5”的高精度旋转编码器进行标定，具有足够的精度和鲁棒性。

I aimed to develop a low cost calibration system for the accurate rotary encoders with error of about 5". By using the equal-division-averaging-method and the time-conversion-method, that is, respectively, a self-calibration-method and an angular automatic measurement method with high resolution, the calibration system has been developed. The system was verified that it could calibrate the high accurate rotary encoder with error of ±0.5" with adequate accuracy and robustness without the high accurate reference encoder, the accurate index table and the rotational velocity drive system.