| 凸形弧线旋转曲面声透镜研究 |
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| 引用本文： | 何家忠,张福成.凸形弧线旋转曲面声透镜研究[J].声学技术,2001,20(2):95-96. |
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| 作者姓名： | 何家忠 张福成 |
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| 作者单位： | 1. 韶关大学物理系,
2. 陕西师范大学应用声学研究所, |
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| 摘 要： | 通过对凸形弧线旋转曲面声透镜在不同面形参数下的声场的数值计算，研究了透镜面形参数与其声场分布特特间的关系，证实透镜面形参数对声场分布有明显影响，根据在声场中尽可能长的距离范围内，获得声束宽度较小，旁瓣水平适中的声束的要求，提出了透镜的优化面形参数，结果得到实验验证。
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| 关 键 词： | 声场 凸形弧线旋转曲面声透镜 聚焦声束 无损检测 |
| 文章编号： | 1000-3630（2001）02-0095-02 |
| 收稿时间： | 2000/6/19 0:00:00 |
| 修稿时间： | 2000年6月19日 |
Study of convex revolving arc curved surface lens |
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| HE Jia-zhong and ZHANG Fu-cheng.Study of convex revolving arc curved surface lens[J].Technical Acoustics,2001,20(2):95-96. |
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| Authors: | HE Jia-zhong and ZHANG Fu-cheng |
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| Affiliation: | HE Jia zhong 1,ZHANG Fu cheng 2 |
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| Abstract: | The acoustic fields of the transducer with a convex revolving arc lens are calculated numerically for various shape parameters,and the relations between the shape parameters of the lens and the acoustic field characteristics are investigated.The optimum shape parameters of the lens are determined to get a narrow acoustic beam width over a longer axial range while the sidelobe level is moderate.The theoretical results are verified with experimental results. |
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| Keywords: | focusing lens acoustic field |
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