| 解文军,魏炳波.单轴式声悬浮的物理特性[J].声学技术,2001,(2):84~86 |
| 单轴式声悬浮的物理特性 |
| Physical characteristics of single-axis acoustic levitation |
| 投稿时间：2000-01-21 修订日期：2000-01-21 |
| DOI： |
| 中文关键词: 声悬浮 悬浮性能 |
| 英文关键词: acoustic levitation levitation capabilities |
| 基金项目:国家自然科学基金(批准号:59871040);国家高技术研究发展计划(批准号:8632432)项目 |
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| 中文摘要: |
| 采用边界元方法对单轴式声悬浮过程中的入射声场计算,揭示了样品在声悬浮过程中的受力特性。结果表明,提高声源强度、降低重力水平或者采用密度大声速小的气体介质有利于提高声悬浮能力。另外,采用适当曲率半径和较大截面半径的凹球面反射端能够提高模式4下靠近反射面的一个悬浮位置的悬浮性能。 |
| 英文摘要: |
| Single axis acoustic levitation was investigated by a BEM model corresponding to our levitator and the levitation characteristics were revealed.The calculated results show that strong vibrating source,low gravitational level and sound medium with large density and small sound speed will enhance the levitation ability.Meanwhile,a concave reflector with suitable curvature radius and large section radius improves the levitation capabilities of the potential well near the reflector under mode 4. |
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