Pulsed TV holography and tomography for the study of transient waves in air

被引：4
|
作者：
Li, XD
Gren, P [1 ]
Wåhlen, A
Schedin, S
机构：
[1] Lulea Univ Technol, Div Expt Mech, SE-97187 Lulea, Sweden
[2] Univ Sci & Technol China, Dept Modern Mech & Engn, Hefei 230026, Anhui, Peoples R China
来源：
OPTICS AND LASER TECHNOLOGY | 1999年 / 31卷 / 01期
基金：
中国国家自然科学基金;
关键词：
tomography; pulsed TV holography; transient acoustic waves;
D O I：
10.1016/S0030-3992(99)00031-6
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Transient waves in air are recorded and reconstructed using pulsed TV holography and computerized tomography (CT). Experiments are performed with an electrical discharge between two electrodes as the acoustic wave source. The free space wave-fronts and pressure fields are reconstructed. Waves reflected and diffracted by different obstacles are also recorded and reconstructed in three dimensions. Speckle averaging and image processing techniques are used to get the high quality projection fields needed for CT reconstruction. (C) 1999 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：23 / 32
页数：10
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