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首页> 外文期刊>Optics Communications: A Journal Devoted to the Rapid Publication of Short Contributions in the Field of Optics and Interaction of Light with Matter >Visualized measurement of the acoustic levitation field based on digital holography with phase multiplication
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Visualized measurement of the acoustic levitation field based on digital holography with phase multiplication

机译：基于数字全息技术的相悬浮声悬浮场的可视化测量

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摘要

By using digital holographic interferometory with phase multiplication, the visualized measurement of the acoustic levitation field (ALF) with single axis is carried out. The digital holograms of the ALF under different conditions are recorded by use of CCD. The corresponding digital holographic interferograms reflecting the sound pressure distribution and the interference phase distribution are obtained by numerical reconstruction and phase subtraction, which are consistent with the theoretical results. It indicates that the proposed digital holographic interferometory with phase multiplication can successfully double the fringe number of the interference phase patterns of the ALF and improve the measurement precision. Compared with the conventional optical holographic interferometory, digital holographic interferometory has the merits of quasi real-time, more exactitude and convenient operation, and it provides an effective way for studying the sound pressure distribution of the ALF.
机译：通过使用具有相位乘法的数字全息干涉术，可以对单轴声悬浮场（ALF）进行可视化测量。通过使用CCD记录不同条件下ALF的数字全息图。通过数值重构和相位减法得到了反映声压分布和干涉相位分布的相应数字全息干涉图，与理论结果相吻合。这表明所提出的具有相位倍增的数字全息干涉术可以成功地使ALF的干涉相位图案的条纹数加倍，并提高测量精度。与传统的光学全息干涉术相比，数字全息干涉术具有准实时，准确度高，操作方便的优点，为研究ALF的声压分布提供了有效的途径。

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