(19)
(11) EP 1 226 403 A1

(12)

(43) Date of publication:
31.07.2002 Bulletin 2002/31

(21) Application number: 00975012.6

(22) Date of filing: 19.10.2000
(51) International Patent Classification (IPC)7G01B 9/021, G01B 11/16
(86) International application number:
PCT/NO0000/347
(87) International publication number:
WO 0131/289 (03.05.2001 Gazette 2001/18)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 29.10.1999 NO 995312
19.05.2000 NO 20002601

(71) Applicant: Holotech AS
3217 Sandefjord (NO)

(72) Inventors:
  • FJELDSTAD, John, Petter
    N-3220 Sandefjord (NO)
  • FJELDSTAD, Irina, Evgenievna
    N-3220 Sandefjord (NO)
  • LOBANOV, Leonid Mikhailovich
    Kiev, 252001 (UA)
  • PIVTORAK, Vyacheslav Antonomovich
    Kiev, 252042 (UA)
  • KUVSHINSKY, Nikolai Georgievich
    Kiev, 252154 (UA)
  • ANDRUSHCHENKO, Sergei Gavrilovich
    Kiev, 252060 (UA)
  • KUSHNIRUK, Vladimir Petrovich
    Kiev, 252028 (UA)
  • LOGINOV, Vladimir Petrovich
    Kiev, 252042 (UA)
  • KROTENKO, Peter Dmitrievich
    Kiev, 252142 (UA)
  • PAVLOV, Valery Aleandrovich
    Kiev, 252154 (UA)

(74) Representative: Jackson, David Spence et al
REDDIE & GROSE16, Theobalds Road
London, WC1X 8PL
London, WC1X 8PL (GB)

   


(54) METHOD AND DEVICE FOR REAL TIME NON-DESTRUCTIVE DETERMINATION OF RESIDUAL STRESSES IN OBJECTS BY OPTICAL HOLOGRAPHIC INTERFEROMETRY TECHNIQUE