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    • 9. 发明公开
    • ULTRASONIC TRANSDUCER AND ULTRASONIC PROBE
    • 超声波传感器和超声波探头
    • EP3291578A1
    • 2018-03-07
    • EP16786327.3
    • 2016-04-15
    • Olympus Corporation
    • FUJIMURA, Takanao
    • H04R17/00A61B8/12H04R19/00
    • A61B8/4483A61B1/00045A61B1/06A61B1/307A61B8/12A61B8/14A61B8/4281A61B8/4444A61B8/4494A61B8/461B06B1/0622G10K11/30G10K11/357H04R17/00H04R19/00
    • An ultrasound transducer according to the present invention includes: a plurality of piezoelectric elements configured to emit ultrasound according to input of an electric signal and convert ultrasound incident from an outside into an electric signal; and a mask portion that is provided between the plurality of piezoelectric elements and a radiation surface of the ultrasound on the ultrasound transducer. The mask portion is configured to: mask any divided region among a plurality of divided regions obtained by dividing an elevation direction orthogonal to a plane parallel to a scanning direction of the ultrasound; reflect the ultrasound in a direction different from a propagation direction of the ultrasound on the masked divided region; and allow the ultrasound to pass in the propagation direction in the divided regions except the masked divided region.
    • 根据本发明的超声波换能器包括:多个压电元件,配置为根据电信号的输入发射超声波,并将从外部入射的超声波转换为电信号; 以及设置在所述多个压电元件与所述超声波振子上的所述超声波的放射面之间的掩模部。 掩模部分被配置为:掩蔽通过划分与平行于超声波的扫描方向的平面正交的仰角方向而获得的多个分割区域中的任何分割区域; 在与掩蔽分割区域上的超声波的传播方向不同的方向上反射超声波; 并且允许超声波在除了被遮蔽的分割区域之外的分割区域中在传播方向上通过。