Patent ID: 6371915
Filing Date: 2002-04-16
Classification: G10K,Y10T

Abstract:
An ultrasound transducer comprising:a transducer element for transmitting and receiving ultrasound waves, said transducer element having an impedance and a transmitting/receiving surface, and said transducer element being capable of generating an ultrasound wave having a preselected wavelength; a first impedance matching layer, said first impedance matching layer having a front surface, a back surface in communication with said transmitting/receiving surface of said transducer element, an impedance substantially equal to an impedance of an operating medium, and a first thickness of substantially one-twelfth wavelength of said ultrasound wave within said first impedance matching layer; and a second impedance matching layer, said second impedance matching layer having a back surface in communication with said front surface of said first impedance matching layer, an impedance substantially equal to said impedance of said transducer element, and a second thickness of substantially one-twelfth wavelength of said ultrasound wave within said second impedance matching layer.