Ultrasonic matching layer and transducer

Details Ultrasonic matching layer and transducer Ultrasonic matching layer and transducer

A - Human Necessities

61

B

A61B 8/14 (2006.01)

Patent

CA 2644224

In one aspect, matching layers for an ultrasonic transducer stack having a matching layer comprising a matrix material loaded with a plurality of micron-sized and nano-sized particles. In another aspect, the matrix material is loaded with a plurality of heavy and light particles. In another aspect, an ultrasound transducer stack comprises a piezoelectric layer and at least one matching layer. In one aspect, the matching layer comprises a composite material comprising a matrix material loaded with a plurality of micron-sized and nano-sized particles. In a further aspect, the composite material can also comprise a matrix material loaded with a plurality of heavy and light particles. In a further aspect, a matching layer can also comprise cyanoacrylate.

Dans un de ses aspects, l'invention concerne des couches d'adaptation destinées à un empilement de transducteurs ultrasonores possédant une couche d'adaptation comprenant un matériel de base chargé de plusieurs particules de taille nanométrique et micrométrique. Dans un autre de ces aspects, le matériel de base est chargé de plusieurs particules lourdes et légères. Dans un autre aspect encore, un empilement de transducteurs ultrasonores comprend une couche piézoélectrique et au moins une couche d'adaptation. La couche d'adaptation peut comprendre une matière composite contenant un matériel de base chargé de plusieurs particules de taille nanométrique et micrométrique. La matière composite peut également contenir un matériel de base chargé de plusieurs particules lourdes et légères. Enfin, une couche d'adaptation peut contenir du cyanoacrylate.

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