| 双球面声学透镜优化设计 |
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| 引用本文： | 何家忠,张福成.双球面声学透镜优化设计[J].陕西师范大学学报,2001,29(2):45-47. |
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| 作者姓名： | 何家忠 张福成 |
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| 作者单位： | [1]韶关大学物理学系，广东韶关512005 [2]陕西师范大学应用声学研究所，陕西西安710062 |
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| 摘 要： | 对双球面声学透镜在不同曲面形状参数条件下的声场进行数值计算，分析了透镜面形参数与声场分布特征的关系；根据在声场中尽可能长的范围内获得声束宽度较小、旁瓣水平适中的聚焦声束的要求，给出了双球面声透镜的优化面形参数。
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| 关 键 词： | 聚焦 透镜 声场 优化设计 双球面声学透镜 |
| 文章编号： | 1001-3857(2001)02-0045-03 |
| 修稿时间： | 2000年9月11日 |
Optimum design of bi-sphere lens |
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| HE Jia_zhong ,ZHANG Fu_cheng.Optimum design of bi-sphere lens[J].Journal of Shaanxi Normal University: Nat Sci Ed,2001,29(2):45-47. |
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| Authors: | HE Jia_zhong ZHANG Fu_cheng |
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| Institution: | HE Jia_zhong 1,ZHANG Fu_cheng 2 |
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| Abstract: | The acoustic fields of the bi_sphere lens are calculated numerically for various shape parameters, the relations between the shape parameters and the acoustic field distribution 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 side_lobe level is moderate, the theoretical results are verified experimentally. |
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| Keywords: | focusing lens acoustic field optimum design |
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