Share Email Print

Proceedings Paper

Study of plate vibrations by moire holography
Author(s): Jesus Blanco-Garcia; J. L. Fernandez; Angel F. Doval; Jose Carlos Lopez Vazquez; Francisco Pino Alvarez; Mariano Perez-Amor
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Advantages of moire holography with single illumination beam as a real-time method to detect vibrational modes of diffusing objects have been already experimentally demonstrated by several authors. The main obstacle to automatizing the analysis of the moire pattern is the difficulty in filtering the carrier pattern. At the present, it seems affordable to realize filtering in quasi-real time by means of a digital image-processing system. However, several problems arise in this operation, for example, the spread of the spatial frequency spectrum of the carrier fringes. Different filtering algorithms, with and without FFT, are compared. Different ways to combine both carriers are examined.

Paper Details

Date Published: 1 October 1991
PDF: 11 pages
Proc. SPIE 1508, Industrial Applications of Holographic and Speckle Measuring Techniques, (1 October 1991); doi: 10.1117/12.47105
Show Author Affiliations
Jesus Blanco-Garcia, Univ. de Vigo (Spain)
J. L. Fernandez, Univ. de Vigo (Spain)
Angel F. Doval, Univ. de Vigo (Spain)
Jose Carlos Lopez Vazquez, Univ. de Vigo (Spain)
Francisco Pino Alvarez, Univ. de Vigo (Spain)
Mariano Perez-Amor, Univ. de Vigo (Spain)

Published in SPIE Proceedings Vol. 1508:
Industrial Applications of Holographic and Speckle Measuring Techniques
Werner P. O. Jueptner, Editor(s)

© SPIE. Terms of Use
Back to Top