Visualized measurement of the acoustic levitation field based on digital holography with phase multiplication

被引：11
作者：
Zheng, Puchao [1 ]
Li, Enpu [1 ]
Zhao, Jianlin [1 ]
Di, Jianglei [1 ]
Zhou, Wangmin [1 ]
Wang, Hao [1 ]
Zhang, Ruifeng [1 ]
机构：
[1] Northwestern Polytech Univ, Inst Opt Informat Sci & Technol, Shaanxi Key Lab Opt Informat Technol, Sch Sci, Xian 710072, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2009年 / 282卷 / 22期
关键词：
Digital holography; Holographic interferometory; Acoustic levitation; Sound pressure distribution; Phase multiplication; REFRACTIVE-INDEX; INTERFEROMETRY;
D O I：
10.1016/j.optcom.2009.08.008
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
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. (c) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：4339 / 4344
页数：6
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