Detection of direction of motion and zero order fringe identification in holographic displacement measurement
Abstract
Two methods have been suggested to detect the direction (forward or backward) of uniform velocity motion along with identification of no motion positions with other intensity maxima positions in the reconstruction. The first method requires two continuous exposures while the other is a combination of one static and one continuous recording.
- Publication:
-
Pramana
- Pub Date:
- February 1978
- DOI:
- 10.1007/BF02846359
- Bibcode:
- 1978Prama..10..221V
- Keywords:
-
- Diffraction Patterns;
- Displacement Measurement;
- Hologrammetry;
- Holographic Interferometry;
- Directivity;
- Radiant Flux Density;
- Wave Front Reconstruction;
- Instrumentation and Photography;
- Holography;
- interferometry;
- displacement;
- direction detection;
- fringe counting