Transient vibration measurements using multi-pulse digital holography

被引：35

作者：

Pedrini, G ^{[1
]}

Froning, P ^{[1
]}

Fessler, H ^{[1
]}

Tiziani, HJ ^{[1
]}

机构：

[1] Univ Stuttgart, Inst Tech Opt, D-70569 Stuttgart, Germany

来源：

OPTICS AND LASER TECHNOLOGY | 1997年 / 29卷 / 08期

关键词：

multi-phase holography; digital holographic interferometry; multi-pulse lasers; transient vibrations;

D O I：

10.1016/S0030-3992(97)00048-0

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An optical system for the evaluation of transient deformations will be described. In order to increase the temporal resolution, a ruby laser producing four pulses has been used. Four separate digital holograms tone hologram for each pulse) of the test object are recorded in a few microseconds on three CCD sensors. The Fourier method is used for the quantitative evaluation of the digital holograms. The phases are obtained from the complex amplitudes, and the deformation at different times is calculated from phase subtraction. Experimental results are presented. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：505 / 511

页数：7

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