Patent ID: 6624539
Filing Date: 2003-09-23
Classification: B06B,H01L

Abstract:
A high power ultrasonic transducer comprising a housing having a predetermined geometry, means carried by the housing for providing power in excess of three kilowatts including transducer having one or more active elements made from a giant magnetostrictive material and means for producing an electromagnetic field which extends through at least a portion of the one or more active elements, the one or more active elements each changeable between a first shape when in the absence of the electromagnetic field and a second shape when in the presence of the electromagnetic field, biasing means for biasing the one or more active elements, flux path means for capturing magnetic flux through the one or more active elements, means for providing an electrical signal to the means for producing an electromagnetic field, cooling means for cooling the one or more active elements and an acoustic element connected to the transducer for channeling ultrasonic energy to perform work.