作者: G. Pedrini , B. Pfister , H. Tiziani
DOI: 10.1080/09500349314550111
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摘要: In this paper we describe a double-pulsed electronic speckle interferometry system. Two separated patterns are recorded within few microseconds using charge-coupled device camera, the two images then stored in frame grabber and subtraction method is applied. A quantitative analysis of fringes spatial-carrier phase-shift presented. The results show that well suited to study transient vibrations.