Speckle correlation method used to measure object's in-plane velocity
Language English Country United States Media print
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
17538666
DOI
10.1364/ao.46.003709
PII: 138115
Knihovny.cz E-resources
- MeSH
- Time Factors MeSH
- Equipment Design MeSH
- Physics methods MeSH
- Metals MeSH
- Lasers MeSH
- Microscopy instrumentation methods MeSH
- Optics and Photonics * MeSH
- Image Processing, Computer-Assisted MeSH
- Motion MeSH
- Models, Statistical MeSH
- Models, Theoretical MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Names of Substances
- Metals MeSH
We present a measurement of an object's in-plane velocity in one direction by the use of the speckle correlation method. Numerical correlations of speckle patterns recorded periodically during motion of the object under investigation give information used to evaluate the object's in-plane velocity. The proposed optical setup uses a detection plane in the image field and enables one to detect the object's velocity within the interval (10-150) microm x s(-1). Simulation analysis shows a way of controlling the measuring range. The presented theory, simulation analysis, and setup are verified through an experiment of measurement of the velocity profile of an object.
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