Kim Hyuno, Yamakawa Yuji, Senoo Taku, Ishikawa Masatoshi
Opt Express. 2016 Jun 13;24(12):13375-86. doi: 10.1364/OE.24.013375.
In this paper, a new measurement method of the rotation angle of a rotor, which is named the 'visual encoder,' was proposed. This method is based on the principles of the vision-based method and the optical encoder, and realized by using a high-speed vision system. The visual encoder shows advantageous features such as non-contact, high-resolution and robustness against the free motion and the fluctuation of the rotation axis. A high resolution method to increase the measurement resolution was also suggested. The accuracy and the robustness of the visual encoder were confirmed through the experimental verifications, and the operation was possible at 6,000 rpm even under the fluctuation of rotation axis.
本文提出了一种名为“视觉编码器”的转子旋转角度测量新方法。该方法基于视觉方法和光学编码器的原理，通过高速视觉系统实现。视觉编码器具有非接触、高分辨率以及对旋转轴的自由运动和波动具有鲁棒性等优点。还提出了一种提高测量分辨率的高分辨率方法。通过实验验证了视觉编码器的准确性和鲁棒性，即使在旋转轴波动的情况下，也能在6000转/分钟的转速下运行。
