Effect of low-frequency vibrations on speckle interferometry fringes

Journal Article · Fri May 01 04:00:00 EDT 1998 · Optical Engineering

DOI:https://doi.org/10.1117/1.601685· OSTI ID:612459

Vikram, C S ^[1]; Pechersky, M J ^[2]

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1. University of Alabama in Huntsville, Center for Applied Optics, Huntsville, Alabama (United States) 35899
2. Westinghouse Savannah River Company, Savannah River Technology Center, Aiken, South Carolina (United States) 29802

The effects of low-frequency vibrations on speckle correlation fringes have been investigated. The relatively short capture time of the camera in the low-frequency case may yield usable fringe contrast in spite of vibration. It has been shown that the fringes also shift due to the vibration. The study is in agreement with experimental observations of good-contrast correlation fringes even if the object is not on a vibration-isolated table. Some such experimental observations are also presented. {copyright} {ital 1998 Society of Photo-Optical Instrumentation Engineers.}

• Research Organization: Savannah River Site
• DOE Contract Number: AC09-89SR18035
• OSTI ID: 612459
• Journal Information: Optical Engineering, Journal Name: Optical Engineering Journal Issue: 5 Vol. 37; ISSN 0091-3286; ISSN OPEGAR
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CAPTURE
CORRELATIONS
FREQUENCY ANALYSIS
FRINGE CONTRAST
FRINGE SHIFT
HOLOGRAPHY
IN SITU APPLICATIONS
INTERFEROMETRY
MECHANICAL VIBRATIONS
SPECKLE CORRELATION INTERFEROMETRY
STRESS ANALYSIS
VIBRATIONAL STATES