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一种内插器,特别是在计量装置中和光栅一起使用,用于检测位置,它接收正交的输入信号. An internal interpolator, particularly in the metering apparatus and used with the grating, for detecting the position, which receives the quadrature input signal. 对输入信号中的一个进行平方并把两个输入信号乘在一起, 以提供频率为输入信号频率二倍频的进一步的正交信号. Of an input signal is squared and the two input signals are multiplied together to provide a frequency of the second harmonic of the input signal frequency quadrature signal further. 也对进一步的信号进行平方,并把进一步的信号乘在一起,以提供频率为输入信号频率4倍频的输出信号.