G - Physics – 01 – H
Patent
G - Physics
01
H
G01H 9/00 (2006.01) G01D 5/26 (2006.01) G01N 29/14 (2006.01) G01N 29/36 (2006.01) G01N 29/34 (2006.01)
Patent
CA 2335132
The present invention detects ultrasonic displacements includes a detection laser to generate a first pulsed laser beam to detect the ultrasonic surface displacements on a surface of the target. Collection optics to collect phase modulated light from the first pulsed laser beam either reflected or scattered by the target. An optical amplifier which amplifies the phase modulated light collected by the collection optics. An interferometer which processes the phase modulated light and generate at least one output signal. A processor that processes the at least one output signal to obtain data representative of the ultrasonic surface displacement at the target.
La présente invention (300) permet de détecter des déplacements ultrasoniques au moyen d'un laser de détection (320) qui produit un premier faisceau laser pulsé (325) destiné à détecter des déplacements superficiels ultrasoniques sur la surface d'une cible (110). Une optique collectrice (330) recueille le rayonnement lumineux à modulation de phase à partir du premier rayon laser pulsé (325) qui est soit réfléchi, soit diffusé par la cible (110). Un amplificateur optique amplifie le rayonnement à modulation de phase recueilli par l'optique collectrice. Un interféromètre (150) traite le rayonnement à modulation de phase et produit au moins un signal de sortie.
Gowling Lafleur Henderson Llp
Lockheed Martin Corporation
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