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很多应用都用正交编码器来确定机械行程的位移量与方向。它们随设计而变化,但都做了相同的工作:提供一组相差为90°的方波。图1给出了典型的输出信号。
Many applications use quadrature encoders to determine the amount and direction of mechanical travel displacement. They vary from design to design but do the same thing: Provide a set of square waves that differ by 90 °. Figure 1 shows a typical output signal.