Optical detection of a surface motion of an object

Details Optical detection of a surface motion of an object Optical detection of a surface motion of an object

G - Physics

01

P

340/148.2

G01P 13/00 (2006.01) G01B 9/02 (2006.01) G01H 9/00 (2006.01)

Patent

CA 2013406

An optical detection of a surface motion of an object is disclosed. An optical interferometer receives a laser light which is scattered from the surface of the object and transmitted through a substantial length of an optical fiber. The stabilization is carried out by a signal which is obtained by processing signals generated by a reference detector and a stabilization detector located respectively at the input side and the output side of the interferometer.

Détection optique de mouvements en surface d'un objet. Un interféromètre optique reçoit une lumière laser diffusée à partir de la surface de l'objet et transmise sur une longueur importante d'une fibre optique. La stabilisation est effectuée au moyen d'un signal obtenu en traitant les signaux générés par un détecteur de référence et un détecteur de stabilisation situés respectivement du côté entrée et du côté sortie de l'interféromètre.

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