The basic principles of comparative holographic interferometry are presented. The interference pattern gives contours of path variations related to the difference in displacements of two specimens. After confirming the experimental feasibility of the method, its applicability to flaw detection is demonstrated.
SEM Spring Conference on Experimental Mechanics
- Pub Date:
- Holographic Interferometry;
- Nondestructive Tests;
- Diffraction Patterns;
- Wave Diffraction;
- Instrumentation and Photography