Abstract: the method for calculating the optimum detectability of ultrasonic focussing probe theoretically.
文摘：从理论上推导了聚焦探头对缺陷最佳检测能力的计算方法。
The method for calculating the optimum detectability of ultrasonic focussing probe is discussed theoretically.
从理论上推导了聚焦探头对缺陷最佳检测能力的计算方法。
By oil immersion coupling. the system can be used to detect near surface defects with focussing probe. find surface cracks with surface wave probe and determine defect size with computerized C-scan.
该装置采用全油浸耦合，用聚束探头检测近表面缺陷，用表面波检测表面裂纹，用计算机化c扫描定量缺陷尺寸。
By oil immersion coupling. the system can be used to detect near surface defects with focussing probe. find surface cracks with surface wave probe and determine defect size with computerized C-scan.
该装置采用全油浸耦合，用聚束探头检测近表面缺陷，用表面波检测表面裂纹，用计算机化c扫描定量缺陷尺寸。
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