A Model to Predict Phased Array Ultrasonic Testing Signals from a Flat-Bottomed Hole in Two Medium
In this study, the expanded multi-Gaussian beam model is adopted to develop a model to calculate the ultrasonic beam fields radiated from an ultrasonic phased array transducer. Combining this beam model with three other components including time delays, a far-field scattering model and a system efficiency factor, we develop a complete ultrasonic measurement model for predicting the phased array ultrasonic signals that can be captured from a flat-bottom hole in a steel specimen in a pulse-echo set-up using an array transducer mounted in a solid wedge. This paper describes the complete model developed with its key ingredients.
Seung-Seok Lee, Joon Hyun Lee, Ik Keun Park, Sung-Jin Song, Man Yong Choi
S. J. Song et al., "A Model to Predict Phased Array Ultrasonic Testing Signals from a Flat-Bottomed Hole in Two Medium", Key Engineering Materials, Vols. 321-323, pp. 501-504, 2006