The surface acoustic wave (SAW) sensor can transform the measured object into frequency output, viz a kind of digital signal output.
声表面波(SAW)传感器能将被测量转换成容易检测的频率信号，即一种准数字信号的输出。
The result achieved in this way agrees well with the surface profile of the object measured.
按该方法处理得到的结果与实际物体的形貌特征吻合。
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