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Proceedings Paper

Portable holographic interferometric device for aircraft inspecting
Author(s): George Eugene Dovgalenko; Yuri I. Onischenko; Irina I. Loutchkina; Gregory J. Salamo
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Paper Abstract

A new single-beam technique for a continuous reconstruction of volume holograms in photorefractive crystals of symmetry 23 is presented. The doped crystal Bi12TiO20 (Fe,P) possessing diffraction efficiency above 70% is used for real-time holographic interferometry. The major advantage of this technique is an automatic self-adjustment of diffraction in volume holograms, continuous reconstruction of volume holograms, high diffraction efficiency without application of external electric field, high resolution (more than 3000 lines/mm), high vibroprotection stability, low cost using of He-Ne or diode lasers, and portability (single-beam device). A 1 mm crack was detected at a depth of 1.5 mm in airplane wings near a rivet zone using protable adaptive holographic interferometer.

Paper Details

Date Published: 23 June 1995
PDF: 10 pages
Proc. SPIE 2545, Interferometry VII: Applications, (23 June 1995); doi: 10.1117/12.212656
Show Author Affiliations
George Eugene Dovgalenko, Univ. of Arkansas (United States)
Yuri I. Onischenko, GELUON Lab. (Ukraine)
Irina I. Loutchkina, GELUON Lab. (Ukraine)
Gregory J. Salamo, Univ. of Arkansas (United States)

Published in SPIE Proceedings Vol. 2545:
Interferometry VII: Applications
Ryszard J. Pryputniewicz; Gordon M. Brown; Werner P. O. Jueptner, Editor(s)

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