The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 18, 2003
Filed:
Jun. 13, 2000
John Petter Fjeldstad, Sandefjord, NO;
Irina Evgenievna Fjeldstad, Sandefjord, NO;
Leonid Mikhailovich Lobanov, Kiev, UA;
Vjacheslav Avtonomovich Pivtorak, Kiev, UA;
Nikolay Georgievich Kuvshinsky, Kiev, UA;
Galina Ivanovna Tkachuk, Kiev, UA;
Vladimir Petrovich Kushniruk, Kiev, UA;
Valeriy Aleksandrovich Pavlov, Kiev, UA;
Nikolay Aleksandrovich Davidenko, Kiev, UA;
Peter Dmitrievich Krotenko, Kiev, UA;
HoloTech as, Sandefjord, NO;
Abstract
This invention relates to a method and device for non-destructive inspection by means of holographic interferometry of details, machine units, mechanisms, and various materials, which eliminates the problem of relative displacement of the object with regard to the holographic equipment, especially due to vibratory motion of the object. This is achieved by transporting the reference and object beams between the investigated object, light source, and interferometer in flexible wave guidance cables and that the endpoints of the flexible wave guidance cables are securely attached in a fixed distance from the investigated object, recording medium of the interferometer and light source, respectively. This will also give the benefit of dividing the holographic interferometer into an object part and a registering part which forms the interferograms. Thus it becomes possible to perform measurements on objects in situ under any weather condition while the sensitive recording equipment of the holographic interferometer can be operated in a distant protected location.