超声换能器声场的模拟和可视化研究
Simulation and Visualization of the Radiated Acoustic Field of Ultrasonic Transducers
摘 要
了解超声换能器声场的分布对于检测精度和灵敏度的提高、检测工艺参数的优化都起着至关重要的作用。为了更直观地分析超声换能器的声场，提高对超声波产生和传播机理的理解，利用多元高斯声束模型，对超声换能器辐射的声场进行了计算机模拟和可视化，开发了具有良好用户界面接口的声场模拟程序。试验结果表明，模拟结果能够比较准确地反映声场的实际分布。
模拟
可视化
高斯声束模型
Transducer radiated acoustic field
Simulation
Visualization
Multi-gaussian beam model
Abstract
Knowing the acoustic field distribution of ultrasonic transducers is of vital importance to the improvement of testing accuracy and sensitivity and the optimization of inspection parameters. In order to analyze the acoustic field of ultrasonic transducers more directly and to understand better the generation and propagation mechanism of ultrasound, the radiated acoustic field of ultrasonic transducers is simulated and visualized by means of multi-Gaussian beam model. Moreover, an acoustic field simulation program is developed featured with a friendly graphic user interface. The experimental results demonstrate that the simulation can represent the distribution of the acoustic field actually and exactly.
中图分类号 TG115.28
所属栏目 科研成果与学术交流
基金项目 国家自然科学基金资助项目(50775054)；国际合作基金资助项目(2007DFR70070)
收稿日期 2010/4/23
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备注沙正骁(1985-)，男，硕士研究生。
引用该论文: SHA Zheng-Xiao,GANG Tie,ZHAO Xin-Yu2. Simulation and Visualization of the Radiated Acoustic Field of Ultrasonic Transducers[J]. Nondestructive Testing, 2011, 33(5): 2～6
沙正骁,刚铁,赵新玉. 超声换能器声场的模拟和可视化研究[J]. 无损检测, 2011, 33(5): 2～6
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参考文献
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【2】张伟志，刚铁，王军.超声波检测计算机模拟和仿真的研究及应用现状[J].应用声学,2003,22(3):39-44.
【3】Xue T, Lord W, Udpa S. Numerical analysis of the radiated fields of ultrasonic transducers[J]. Nondestructive Evaluation,1995,14(3):137-148.
【4】Alfredo E F, Javier I E. Mathematical modeling of the radiated acoustic feld of ultrasonic transducers[C]. IV Conferencia Panamericana de END,2007.
【5】Schechter R S, Simmonds K E, Mignogna R B. Computational and experimental investigation of the fields generated by a 1–3 piezocomposite transducer[J]. Ultrasonics,2001,39(3):163-172.
【6】Ogilvy J A. A layered media model for ray propagation in anisotropic inhomogeneous materials[J]. Appl Math Mod,1990(14):237-247.
【7】Thompson R B, Lopes E F. The effects of focusing and refraction on Gaussian ultrasonic beams[J]. Nondestructive Evaluation,1984,4(2):107-123.
【8】丁辉，张俊，张益成，等.超声检测声场计算模型的建立与仿真软件的开发[J].无损检测,2009,31(8):614-618.
【9】Wen J J, Breazeale M A. A diffraction beam field expressed as the superposition of Gaussian beams[J]. Journal of the Acoustical Society of America,1988,83(5):1752-1756.
【10】Ding D, Zhang Y, Liu J. Some extensions of the Gaussian beam expansion: Radiation fields of the rectangular and elliptical transducer[J]. Journal of the Acoustical Society of America,2003,113(6):3043-3048.
【11】Lester W, Schmerr Jr, Sung-Jin Song. Ultrasonic Nondestructive Evaluation Systems: Models and Measurements[M]. USA: Springer,2007.
【12】赵新玉，刚铁，张碧星. 非近轴近似多高斯声束模型的换能器声场计算[J].声学学报,2008,33(5):475-480.
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