罗克韦尔通用模块1769-OF8C

1769-OF8C

让我们从快速比较这两种电机技术开始。

虽然伺服电机和步进电机都在转子中使用永磁体，并且需要驱动电路才能运行，但它们的设计存在根本差异，从而导致性能差异。

电机设计

可以命令步进电机移动到某个位置，停止，然后保持，而伺服电机需要通过编码器反馈“寻找”目标位置。您会注意到的第一个主要区别是伺服电机对编码器的要求增加了电机长度。

第二个主要区别是极数。这里讨论的磁极是“磁极”，可以定义为转子上的北极或南磁极。这些磁极提供特定的稳定点，来自定子的磁通量将与转子相互作用。

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