A posteriori compensation for rigid body motion in holographic interferometry by means of a Moire-technique
Abstract
The sampling theorem of information theory is invoked in a study of moire fringes and their superposition in holographic interferometry of the motion of rigid bodies. Fringe systems due to deformation of the test body are regenerated by a moire technique. The class of rigid body motions that can be eliminated depends on simulation of the fringe system that would be generated by the motion alone. Strict interferometric stability can be relaxed in sandwich hologram interferometry when this method is employed.
- Publication:
-
Optica Acta
- Pub Date:
- March 1977
- DOI:
- 10.1080/713819535
- Bibcode:
- 1977AcOpt..24..201P
- Keywords:
-
- Holographic Interferometry;
- Image Motion Compensation;
- Moire Effects;
- Rigid Structures;
- Diffraction Patterns;
- Displacement Measurement;
- Instrument Compensation;
- Superposition (Mathematics);
- Systems Stability;
- Instrumentation and Photography