photorefractive crystals; holographic interferometry; non destructive testing; industrial applications; space applications
Abstract :
[en] Photorefractive crystals allow in-situ dynamic holographic recording and indefinite reusability. Also they exhibit specific properties that other recording materials do not and which can be advantageously used in holographic interferometry. For 15 years we have been developing holographic interferometry techniques and devices with Bi12SiO20 (BSO) crystals. The dynamic behaviour of the latter allows a high degree of userfriendliness of holographic interferometry (like techniques based on electronic recording), together with higher resolution interferograms (no speckle noise - no need of filtering). In the past we already have presented a wide range of applications in metrology, NDT and vibrations measurement. Here we present recent industrial applications obtained with a device which is now commercially available. It has proven successful applications in highly demanding applications where high resolution was required
Disciplines :
Physics
Author, co-author :
Thizy, Cédric ; Université de Liège - ULiège > CSL (Centre Spatial de Liège)
Georges, Marc ; Université de Liège - ULiège > CSL (Centre Spatial de Liège)
Hustinx, Guy-Michel
Lemaire, Philippe ; Université de Liège - ULiège > CSL (Centre Spatial de Liège)
Language :
English
Title :
Holographic interferometry with photorefractive crystals : recent industrial applications
Publication date :
October 2008
Event name :
International Symposium to Commemorate the 60th Anniversary of the Invention of Holography
Event organizer :
Society for Experimental Mechanics
Event place :
Springfield, MA, United States
Event date :
27-29 October 2008
Audience :
International
Main work title :
Proceedings of the International Symposium to Commemorate the 60th Anniversary of the Invention of Holography
Publisher :
Society for Experimental Mechanics, Bethel, CT, United States
