| 液体表面波振幅与激发深度的关系 |
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| 引用本文： | 苗润才,李能能,高美玲,韩鹏斌.液体表面波振幅与激发深度的关系[J].光子学报,2014,40(6):828-830. |
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| 作者姓名： | 苗润才 李能能 高美玲 韩鹏斌 |
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| 作者单位： | （陕西师范大学 物理学与信息技术学院,西安 710062） |
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| 基金项目： | 陕西省重大科技创新专项基金（No.2010VKC01-18）和陕西省自然科学基金（No.2010JM1003）资助 |
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| 摘 要： | 研究了液体表面波振幅随激发深度的变化特性.采用探针式激发器激发,观察到液体表面波的衍射图样|改变激发深度,得到不同激发深度处的衍射图样|根据衍射图样分布与表面波振幅之间的关系并进行计算机编程,获得表面波振幅与激发深度之间的关系.用最小二乘法拟合,发现|液体表面波振幅随激发深度的增加而减小,并呈指数规律.
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| 关 键 词： | 表面波 声光效应 激发深度 振幅 |
| 收稿时间： | 2010-11-01 |
Dependence of Liquid Surface Acoustic Waves Amplitude on Exited Depth |
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| MIAO Run-cai,LI Neng-neng,GAO Mei-ling,HAN Peng-bin.Dependence of Liquid Surface Acoustic Waves Amplitude on Exited Depth[J].Acta Photonica Sinica,2014,40(6):828-830. |
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| Authors: | MIAO Run-cai LI Neng-neng GAO Mei-ling HAN Peng-bin |
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| Institution: | (Institute of Physics and information Technology,Shannxi Normal University,Xi′an 710062)
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| Abstract: | It is investigated that the characteristics of the liquid surface wave amplitude change with the exited depth.Diffraction patterns from the liquid surface acoustic waves(SAW),which is produced by the exiting needle,were observed.Diffraction patterns from SAW corresponding different exiting depths were found.The relation between the diffraction pattern distribution and the surface acoustic wave amplitude was achieved and this relation was programmed.Then,the dependence of the amplitude on the exited depth was obtained further.It was found that the surface acoustic waves amplitude decreases exponentially as the exited depth increase based on the least square method. |
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| Keywords: | Exited depth Surface acoustic wave Amplitude |
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