Method for optimising wave focalisation through an...

A - Human Necessities – 61 – N

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A61N 7/02 (2006.01)

Patent

CA 2678046

The invention relates to a method for optimising wave focalisation in an area of interest (6) of a medium (4), the waves being emitted by a source network (3) to the medium (4) via an aberration insertion member (5) for inserting an initially non-determined phase deviation. The method of the invention comprises using M-1 successive modifications of the emitted wave, each resulting in a disturbance. According to the invention, the M disturbances are measured in the area of interest (6) at each modification of the phase and/or amplitude distribution, and these measures are used for deriving optimal focalisation characteristics that maximise the disturbance generated in the area of interest (6).

L'invention concerne un procédé d'optimisation de la focalisation d'ondes dans une zone d'intérêt [6] d'un milieu [4], les ondes étant émises par un réseau de sources [3] vers le milieu [4] au travers d'un élément introducteur d'aberrations [5] introduisant un décalage de phase initialement indéterminé. Le procédé selon l'invention propose d'utiliser M-1 modifications successives de l'onde émise entraînant chacune une perturbation. Selon l'invention, les M perturbations sont mesurées dans la zone d'intérêt [6] à chaque modification de la distribution des phases et/ou d'amplitudes et ces mesures sont utilisées pour déduire des caractéristiques de focalisation optimale maximisant la perturbation induite dans la zone d'intérêt [6].

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