High speed phase-shifted speckle pattern interferometry for studying dynamic events

被引：0
|
作者：
Ruiz, PD [1 ]
Huntley, JM [1 ]
Kaufmann, GH [1 ]
Kerr, D [1 ]
机构：
[1] Univ Nacl Rosario, CONICET, Inst Fis, RA-2000 Rosario, Argentina
来源：
INTERFEROMETRY IN SPECKLE LIGHT: THEORY AND APPLICATIONS | 2000年
关键词：
D O I：
暂无
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A phase-shifting dynamic speckle interferometry system which allows the recording of a sequence of interferograms at a frequency of 1 kHz was recently developed. Temporal phase shifting is carried out using a Pockels cell in the reference beam and phase extraction is performed using a standard four-frame algorithm. Temporal phase unwrapping allows sequences of several hundred phase maps to be obtained fully automatically. This paper presents preliminary results for the phase error which arises when this high speed ESPI system is used in the presence of vibration.
引用
收藏
页码：473 / 480
页数：8
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