被动声映射与高速摄影在原位空化泡监测中的对比研究。
Comparison study of passive acoustic mapping and high-speed photography for monitoring in situ cavitation bubbles.
机构信息
Department of Electronic Engineering, Sogang University, Seoul 04107, Republic of
Queensland Brain Institute, University of Queensland, St. Lucia Campus, Brisbane, QLD 4072,
出版信息
J Acoust Soc Am. 2019 Jun;145(6):EL604. doi: 10.1121/1.5113961.
The spatiotemporal accuracy of passive acoustic mapping (PAM) for monitoring in situ cavitation bubbles has not been assessed directly via optical means. Here, the cavitation bubbles are monitored from two image sequences obtained simultaneously with PAM and high-speed photography (HSP). The temporal accuracy of PAM for detecting cavitation nucleation and the spatial resolution for cavitation localization are compared with those measured from HSP. The results show that PAM has a temporal accuracy of 20 μs. Mean differences in the spatial locations of PAM and HSP are as small as 10.0 and 30.5 μm along the lateral and axial directions, respectively.
被动声映射（PAM）用于监测原位空化气泡的时空准确性尚未通过光学手段直接评估。在这里，通过 PAM 和高速摄影（HSP）同时获得的两个图像序列来监测空化气泡。PAM 检测空化核化的时间精度和空化定位的空间分辨率与 HSP 测量的结果进行了比较。结果表明，PAM 的时间精度为 20 μs。PAM 和 HSP 在横向和轴向方向上的空间位置的平均差异分别小至 10.0 和 30.5 μm。
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