基于伪随机序列的索引式绝对位置编码

Absolute Encoder Based on Pseudo-random Sequence

提出了一种基于伪随机序列的索引式绝对位置编码,介绍了它在绝对位置角度传感器中的应用和生成方法。由于它是一种单码道绝对位置编码,克服了传统位置编码随精度提高而码道增多、工艺上不易实现的缺点,可缩减码盘的直径,为绝对位置角度传感器的高精度、小型化开辟了一条新的途径。

A new code generating method based on pseudo-random sequence is proposed. The generation of the absolute encoder as well as its application is described. The absolute encoder based on pseudo - random sequence is one with a single track. It overcomes the defect of increasing the accuracy at the expense of more tracks, resulting in difficulties of fabrication. Therefore, it blazes a new trail for the high-accuracy and the miniaturization of the absolute angular encoder.