We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Non-contact optical dynamic measurements at different ranges: a review.
- Authors
Fu, Yu; Shang, Yang; Hu, Wenxin; Li, Bin; Yu, Qifeng
- Abstract
Optical dynamic measurements are widely used for non-contact vibration, continuous deformation, or moving objects. Various measurement techniques were developed for different deformation amplitudes. This paper reviews three types of technique for different measurement ranges: interferometric techniques for deformation or vibration (nanometer to sub-millimeter amplitude) whose measurement accuracies rely on phase extraction of interferometric signal; imaging based techniques for deformation or vibration (micrometer to centimeter amplitude) with the aid of moiré, structured light, and man-made speckles, whose sensitivities is from 1/100 to 1/10 pixel; and videometrics for large deformation or movement detection (greater than centimeter amplitude). Many research groups have improved measurement capabilities for these three techniques to meet particular industrial application requirements.
- Publication
Acta Mechanica Sinica, 2021, Vol 37, Issue 4, p537
- ISSN
0567-7718
- Publication type
Article
- DOI
10.1007/s10409-021-01102-1