The influence of grating characteristics on moiré fringe multiplication
Rent the article at a discountRent now
* Final gross prices may vary according to local VAT.Get Access
Coherent optical techniques of fringe multiplication can be used to enhance the sensitivity of moiré measurements. However, for some coherent optical-processing systems, the significance of the resulting interference pattern is influenced by the characteristics of the gratings being processed. Analysis of one commonly used system for fringe multiplication involving two bar and space amplitude gratings reveals that accuracy of displacements and strains calculated from a fringe pattern is very sensitive to the transmission ratios of the gratings being processed. For variations of the transmission ratio of only 10 percent from the ideal case of 50 percent, the interference patterns produced by optical processing no longer correspond to multiplied moiré-fringe patterns.
- Post, D., “Analysis of Moiré Fringe Multiplication Phenomena,”Appl. Opt.,6 (11),1938–1942 (Nov. 1967).
- Post, D., “New Optical Methods of Moiré Fringe Multiplication,” Experimental Mechanics,8 (2),63–68 (1968).
- Sciammarella, C.A. and Lurowist, N., “Multiplication and Interpolation of Moiré Fringe Orders by Purely Optical Techniques,” J. Appl. Mech., 425–430 (June 1967).
- Guild, J., The Interference Systems of Crossed Diffraction Gratings, Theory of Moiré Fringes, Clarendon Press, Oxford (1956).
- Goodman, Joseph W., Introduction to Fourier Optics, McGraw-Hill (1968).
- Carlson, F.P., Introduction to Applied Optics for Engineers, Academic Press (1977).
- Sanford, R.J., Barker, D.B. andChona, R., “Computer Generated Fringe Patterns in Speckle Analysis,”Int. Conf. on Speckle, SPIE,556,324–331 (1985).
- The influence of grating characteristics on moiré fringe multiplication
Volume 28, Issue 4 , pp 329-335
- Cover Date
- Print ISSN
- Online ISSN
- Kluwer Academic Publishers
- Additional Links
- Industry Sectors