A cogging torque measurement system was proposed , which was composed of stepping motor, torque sensor, etc.

提出了一种由步进电机 、 转矩传感器等元件组成的齿槽转矩测试系统.

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However, their cogging torque or unbalanced radial force is usually high, deteriorating the machine performance.

但是这种电机的齿槽定位转矩或不对称径向力一般也比较高.

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