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    • 4. 发明公开
    • Ultrasonic line sensor, and sheet handling apparatus comprising ultrasonic line sensor
    • Ultraschallzeilensensor und Blatthandhabungsvorrichtung mit einem Ultraschallzeilensensor
    • EP2400487A2
    • 2011-12-28
    • EP10195171.3
    • 2010-12-15
    • Kabushiki Kaisha Toshiba
    • Miura, JunjiItsumi, KazuhiroNakano, TakahisaOonuki, YukioKure, ShotaYamamoto, Takahiro
    • G10K11/00
    • G10K11/00
    • According to one embodiment, an ultrasonic line sensor includes a plurality of ultrasonic sensors each comprising a non-rectangular vibrating surface and generating an electrical signal in accordance with an ultrasonic wave that enters the vibrating surface; and at least one sound absorbing member that is provided between the vibrating surfaces of the ultrasonic sensors and a detection target, and that absorbs an ultrasonic wave, the sound absorbing member being arranged in a position where the sound absorbing member overlaps both edge portions of the vibrating surfaces in a scanning direction that is perpendicular to a conveying direction of the detection target such that effective regions, which are regions in the vibrating surfaces not overlapped by the sound absorbing member, each have two sides parallel to the conveying direction of the detection target.
    • 根据一个实施例,超声波线传感器包括多个超声波传感器,每个超声波传感器包括非矩形振动表面,并根据进入振动表面的超声波产生电信号; 以及设置在所述超声波传感器的振动面和检测对象物之间并且吸收超声波的至少一个吸音部件,所述吸声部件配置在吸音部件与所述吸音部件的两边缘部重叠的位置 在垂直于检测对象的输送方向的扫描方向上振动表面,使得作为不与吸声构件重叠的振动面中的区域的有效区域各自具有与检测对象的输送方向平行的两侧 。