Effects of random vibration in high-speed phase-shifting speckle pattern interferometry
Applied Optics, Vol. 41, Issue 19, pp. 3941-3949 (2002)
http://dx.doi.org/10.1364/AO.41.003941
Acrobat PDF (462 KB)
Abstract
The influence of random vibrations on the performance of a dynamic phase-shifting speckle pattern interferometer is investigated by means of experiments and numerical simulations. Two aspects are evaluated: first, temporal unwrapping reliability, second, vibration-induced phase noise. The former is found to be a significant constraint, even for peak velocities well below the Nyquist velocity limit of the interferometer. Shorter sampling windows and higher framing rates are shown to increase the unwrapping success rate, but longer windows reduce the phase error. Three analytical criteria for determining the expected unwrapping success rate are proposed and compared.
© 2002 Optical Society of America
[Optical Society of America ]
OCIS Codes
(120.2650) Instrumentation, measurement, and metrology : Fringe analysis
(120.4290) Instrumentation, measurement, and metrology : Nondestructive testing
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(120.6160) Instrumentation, measurement, and metrology : Speckle interferometry
(120.7280) Instrumentation, measurement, and metrology : Vibration analysis
Citation
Pablo D. Ruiz, Jonathan M. Huntley, Yuji Shen, C. Russell Coggrave, and Guillermo H. Kaufmann, "Effects of random vibration in high-speed phase-shifting speckle pattern interferometry," Appl. Opt. 41, 3941-3949 (2002)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-41-19-3941
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