An ultrasonic measurement model to predict the response from flat bottom hole for dual crystal contact probe

作者：Zhao Xin-Yu^*; Gang Tie; Zhang Bi-Xing

来源：Acta Physica Sinica, 2008, 57(8): 5049-5055.

DOI：10.7498/aps.57.5049

• ultrasonic measurement model
• dual crystal contact probe
• multi-Gaussian beam model

Dual crystal contact probes play an important role in many practical ultrasonic inspections, so it is essential to develop an ultrasonic measurement model in order to get a thorough understanding of the characteristics of this kind of transducers. By combining the multi-Gaussian beam model and the Kirchhoff approximation scattering model, a complete ultrasonic measurement model is provided to predict testing signals of a flat bottom hole for a dual crystal focused direct contact probe. By comparing with experimental results, the accuracy of predicted signals using this model has been verified.

• 出版日期2008-8
• 单位中国科学院声学研究所; 哈尔滨工业大学