JP2001258088A5 - - Google Patents

Claims (8)

A plate-like vibration in which a plurality of transducer blocks in which both ends of the transducer are sandwiched between the acoustic matching layer and the back surface sound-absorbing material are arranged with the acoustic matching layer side facing outward, and a side-surface sound-absorbing material is provided on at least one side surface An ultrasonic probe constructed by superposing a plurality of child block rows,
Each transducer block array is arranged radially in each transducer block array plate, and the plurality of transducer block array plates are arranged with the acoustic matching layer side inscribed in a predetermined curved surface, An ultrasonic probe characterized in that there is a step in a direction perpendicular to the plate surface of the array plate, and a curved surface is formed without a step in the plate surface direction of the transducer block array plate.   2. The ultrasonic probe according to claim 1, wherein the side-surface sound-absorbing material is provided on a side surface of the transducer block array plate in contact with the curved surface, and each transducer block is provided at a corner portion in contact with the curved surface. An ultrasonic probe characterized in that the sound amplitude is so small that the sound wave emitted from the surface of the transducer block is not affected by the sound emitted from the corner. A transducer block in which both ends of a transducer are sandwiched between an acoustic matching layer and a back surface sound absorbing material, and a plurality of transducer blocks each provided with a side sound absorbing material on at least two side surfaces are arranged two-dimensionally with the acoustic matching layer side facing outward. An acoustic probe,
Each transducer block is arranged in a relationship of translation in the axial direction of the transducer block so that the acoustic matching layer side is inscribed in a predetermined curved surface, and has a step in two directions orthogonal to the axial direction. Characteristic ultrasonic probe.   4. The ultrasonic probe according to claim 3, wherein each transducer block is provided with a side sound absorbing material on a side surface in contact with the curved surface, and the sound amplitude at a corner portion in contact with the curved surface is determined by sound radiated from the corner. An ultrasonic probe characterized in that the wavefront of sound radiated from the surface of a transducer block is small enough not to be affected.   5. The ultrasonic probe according to claim 1, wherein the side-surface sound-absorbing material is a mixture of a resin and a microballoon. 6.   6. The ultrasonic probe according to claim 1, wherein the predetermined curved surface includes one plane on which the transducer blocks are arranged and a plane orthogonal to the plane and the axis of the transducer block. An ultrasonic probe characterized in that it is a curved surface having an arc shape with different curvatures when cut along a plane. In the ultrasonic probe according to any one of claims 1 to 5, wherein the predetermined curved surface is orthogonal to the one plane and the plane where the vibrator blocks are arranged containing the axis of the transducer block An ultrasonic probe characterized in that the probe is a curved surface having an arc shape having the same curvature when cut along another plane.   A plate-like vibration in which a plurality of transducer blocks in which both ends of the transducer are sandwiched between the acoustic matching layer and the back sound absorbing material are arranged with the acoustic matching layer side facing outward and a side sound absorbing material is provided on at least one side surface. An ultrasonic probe configured by superposing a plurality of child block array plates, wherein each transducer block is radially arranged in each transducer block array plate, and the plurality of transducer block array plates are An ultrasonic probe characterized in that the acoustic matching layer side is arranged inscribed in a predetermined curved surface, and the transducer block array plate is arranged with a step in a direction perpendicular to the plate surface. .