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论述一种用于超声波信号的数据采集和分析的计算机系统及其在铁路轮辋自动探伤中的应用，叙述了该系统的构成、工作原理及实验结果。
A computer system for data acquisition and analysis of ultrasonic signals and its application in automatic detection of railway rim are discussed. The composition, working principle and experimental results of the system are described.