| 横波直探头的暂态辐射声场 |
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| 引用本文： | 吴迪, 李明轩, 王小民, 成跃. 横波直探头的暂态辐射声场[J]. 声学学报, 2007, 32(4): 304-309. DOI: 10.15949/j.cnki.0371-0025.2007.04.003 |
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| 作者姓名： | 吴迪 李明轩 王小民 成跃 |
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| 作者单位： | 中国科学院声学研究所,北京,100080;中国科学院声学研究所,北京,100080;中国科学院声学研究所,北京,100080;中国科学院声学研究所,北京,100080 |
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| 摘 要： | 研究分析了采用2/2型压电复合材料制作的一种水平偏振横波直探头的暂态辐射声场特性,推导了两种表面力源辐射声场的严格解析解,通过数值计算给出了中轴面上水平位移的暂态声场图,图中清晰可见直达波、边缘波和头波,实验所得波形验证了上述波的存在。
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| 收稿时间： | 2006-06-28 |
| 修稿时间： | 2006-06-28 |
The ultrasonic transient field radiated by a normal shear wave probe |
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| WU Di, LI Mingxuan, WANG Xiaomin, CHENG Yue. The ultrasonic transient field radiated by a normal shear wave probe[J]. ACTA ACUSTICA, 2007, 32(4): 304-309. DOI: 10.15949/j.cnki.0371-0025.2007.04.003 |
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| Authors: | WU Di LI Mingxuan WANG Xiaomin CHENG Yue |
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| Abstract: | The ultrasonic transient field of horizontally polarized shear wave radiated by a 2/2 piezoelectric composite normal probe was analyzed. The analytic field solutions for two different surface force sources were deduced and the transient displacement field distribution on the central cross-section was plotted by numerical calculations. The direct wave and edge wave as well as the head wave were observed distinctly in the plots. The experimental results of time domain waveform conform the theoretical predictions, which support the theoretical and numerical results about the transient field of the transducer. |
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