A new ultrasonic testing system has been developed for application to stator insulation of large generator. It provides A-scan signals and C-scan map for tested specimen.
自行研制了大电机定子绝缘超声波检测系统，它能同时显示被测试样的A扫描脉冲回波和C扫描平面图。
The results show that the crack propagation work of V-notched specimen can well reflect the notch sensitivity of the tested steels.
结果表明：V型缺口试样的裂纹扩展功能较好地反映材料的缺口敏感性。
The step for acquiring orientation maps, selection of areas to be tested in the specimen as well as the skill during specimen preparations have very important effects on the experimental results.
采集图像的步长、试样分析区的选取及试样制备技术等是影响实验结果的重要因素。
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