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基于预备实验的结果,将作者们采用的应力波放射检测装置方框图示于图1。固定在试样两点上的检测器的输出信号经放大后,记录在磁带上,可供以后研究。但是,由于
Based on the results of the preliminary experiment, the block diagram of the stress wave radiation detecting device adopted by the authors is shown in FIG. 1. The output signal of the detector fixed at two points of the sample is amplified and recorded on a magnetic tape for later study. But due to