Two-way gratings for strain analysis using moire and moire interferometry techniques
Abstract
A specimen grating design with two linear rulings with axes 60 degrees apart is proposed for strain analysis using moire and moire interferometry techniques. The grating facilitates derivation of three displacement patterns using one analyzer grating or a single pair of illuminating beams. Advantages relating to the grating technology and experimental setup simplification are discussed. The results of experiments are presented.
- Publication:
-
Applied Optics
- Pub Date:
- April 1986
- DOI:
- Bibcode:
- 1986ApOpt..25.1105P
- Keywords:
-
- Interference Grating;
- Moire Fringes;
- Moire Interferometry;
- Stress Analysis;
- Beat Frequencies;
- Gratings (Spectra);
- Instrumentation and Photography;
- DIFFRACTION;
- GRATINGS;
- INTERFEROMETRY;
- METROLOGY;
- MOIRE PATTERNS;
- STRAIN ANALYSIS