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A Model to Predict Phased Array Ultrasonic Testing Signals from a Flat-Bottomed Hole in Two Medium

机译:一种模型,用于预测两种介质中的平底孔的分阶段阵列超声波测试信号

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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.
机译:在该研究中,采用扩展的多高斯光束模型来开发模型以计算从超声波相控阵换能器辐射的超声波束场。将该光束模型与三个其他组件组合,包括时间延迟,远场散射模型和系统效率因子,我们开发了一种完整的超声测量模型,用于预测可以从一个平底孔捕获的相控阵超声信号使用安装在实心楔形的阵列换能器的脉冲回波设置中的钢标本。本文介绍了与其关键成分开发的完整模型。

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