Application of optical interferometry in focused acoustic field measurement

Application of optical interferometry in focused acoustic field measurement
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光学干涉技术在聚焦声场测量中的应用

DOI:
10.1016/j.jsv.2018.04.023
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发表时间:
2018-07
影响因子:
4.7
通讯作者:
Jiang Zhu
Jiang Zhu
中科院分区:
工程技术2区
文献类型:
--
作者:
Yuebing Wang;Min Sun;Yonggang Cao;Jiang Zhu

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参考文献

相似文献

光学干涉法已成功地应用于平面波场和球面波场中的声压测量。本文推导了聚焦声场的“有效”折射率,并通过数值模拟和实验验证了光学方法测量聚焦换能器声场的可行性。与膜式水听器的测量结果进行了比较,结果表明,该方法具有较好的空间分辨率,适合于探测起伏分布的聚焦场。几个因素(产生的兰姆波、激光的方向性等)的影响。并对该技术的有效应用提出了相应的建议。
Optical interferometry has been successfully applied in measuring acoustic pressures in plane-wave fields and spherical-wave fields. In this paper, the “effective” refractive index for focused acoustic fields was developed, through numerical simulation and experiments, the feasibility of the optical method in measuring acoustic fields of focused transducers was proved. Compared with the results from a membrane hydrophone, it was concluded that the optical method has good spatial resolution and is suitable for detecting focused fields with fluctuant distributions. The influences of a few factors (the generated lamb wave, laser beam directivity, etc.) were analyzed, and corresponding suggestions were proposed for effective application of this technology.
DOI: 10.1121/1.2713708
发表时间: 2007-05
期刊: The Journal of the Acoustical Society of America
影响因子: --
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