Accuracy improvement of inner defects of cylindrical components using ultrasonic detection with modified ALOK method
Hai Gong,
Jia Liu,
Tao Zhang
et al.
Abstract:The accuracy of defect localisation and its size quantification is poor in the detection of internal defects of cylindrical components using the ultrasonic Amplituden und Laufzeit Orts-Kurven (ALOK) method. The influence of acoustic beam spread is not taken into consideration in the
ultrasonic ALOK method, resulting in difficulties with the precise characterisation of the defect state. To address this, the relationship between the acoustic distance, amplitude, ultrasonic frequency, size and depth of hole defe… Show more
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