To solve the problem of difficulty in the accurate judgment of the zero-crossing position of multi-pole angle value in multi-pole magnetic encoder and then the angle value jumps, this article proposes an angle subdivision method for multi-pole magnetic encoder based on pole number quotient remainder. Firstly, the multi-loop angle data of the magnetic encoder are collected and sorted, and 16 fuzzy multi-pole angle zero-crossing boundaries are obtained. According to the boundary, 32 boundary range values are obtained. The remainder and quotient are calculated according to the boundary range value and are used as the judgment basis of pole pair of the current multi-pole angle value. When the remainder number is 0, the current quotient value can be directly used as the pole number. If the remainder number is not 0, it is necessary to judge the pole number according to the specific range of multi-pole angle values. This method effectively solves the problem of multi-pole number judgment error caused by angle noise of magnetic encoder, and effectively improves the resolution of the magnetic encoder. Experiments show that the multi-pole magnetic encoder with the proposed method can effectively suppress the angle jump caused by the calculation error. Finally, the accuracy of the multi-pole magnetic encoder proposed in this article can reach 11 bits (±0.165°).

中文翻译：

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基于极数商余数的多极磁编码器角度细分方法研究

针对多极磁编码器中多极角值过零位置难以准确判断导致角度值跳跃的问题，本文提出了一种基于多极磁编码器的角度细分方法。极数商余数。首先对磁编码器的多回路角度数据进行采集整理，得到16个模糊多极角度过零边界。根据边界，得到32个边界范围值。余数和商根据边界范围值计算，作为当前多极角值的极对判断依据。余数为0时，可直接用当前商值作为极数。如果余数不为0，需要根据多极角值的具体范围来判断极数。该方法有效解决了磁编码器角度噪声引起的多极数判断误差问题，有效提高了磁编码器的分辨率。实验表明，采用该方法的多极磁编码器可以有效抑制计算误差引起的角度跳跃。最后，本文提出的多极磁编码器的精度可以达到11位（±0.165°）。实验表明，采用该方法的多极磁编码器可以有效抑制计算误差引起的角度跳跃。最后，本文提出的多极磁编码器的精度可以达到11位（±0.165°）。实验表明，采用该方法的多极磁编码器可以有效抑制计算误差引起的角度跳跃。最后，本文提出的多极磁编码器的精度可以达到11位（±0.165°）。