
Proceedings Paper
Adaptive, single crystal holographic interferometer and applicationsFormat | Member Price | Non-Member Price |
---|---|---|
$17.00 | $21.00 |
Paper Abstract
Application of real time interferometry to NDT of the most vital parts of mechanical constructions in
machinery is one of the challenging problems of contemporary engineering. The basic principle of interferometric
methods is based on non-contact sensing of displacements which leads to visualization of defects, visualization of
vibrated modes and stresses. In real engineering constructions almost all monitored objects have diffusely reflective
surfaces, which are non mirror-like. Unfortunately a small interference contrast of diffusely reflective surfaces using
contemporary interferometric technique inhibits applications of these methods to NDT. The most contemporary
potentially powered method of electronic holography EH produced low contrast interferogram of diffusely reflective
objects (Fig.1). It needs special algorithms, software, and time processing to improve the contrast of interference
fringes. The real time monitoring, which based on surface displacements measurements under high energy impact
such as laser shout, ballistic problems in military, etc. needs high contrast, real time metrology.
The interferometric technique of highly effective dynamical grating has been proposed in continuous hologram development regime for monitoring of diffusely reflective objects in the real time.
Paper Details
Date Published: 20 September 2007
PDF: 11 pages
Proc. SPIE 6695, Optics and Photonics for Information Processing, 66950X (20 September 2007); doi: 10.1117/12.733217
Published in SPIE Proceedings Vol. 6695:
Optics and Photonics for Information Processing
Abdul A.S. Awwal; Khan M. Iftekharuddin; Bahram Javidi, Editor(s)
PDF: 11 pages
Proc. SPIE 6695, Optics and Photonics for Information Processing, 66950X (20 September 2007); doi: 10.1117/12.733217
Show Author Affiliations
George Dovgalenko, ITT Technical Institute (United States)
Published in SPIE Proceedings Vol. 6695:
Optics and Photonics for Information Processing
Abdul A.S. Awwal; Khan M. Iftekharuddin; Bahram Javidi, Editor(s)
© SPIE. Terms of Use
