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    • 15. 发明授权
    • Ultrasonic sensor
    • 超声波传感器
    • US07775110B2
    • 2010-08-17
    • US11902366
    • 2007-09-20
    • Yasuyuki OkudaTakahiko YoshidaMakiko SugiuraKazuaki WatanabeTetsuo YoshiokaHisanaga Matsuoka
    • Yasuyuki OkudaTakahiko YoshidaMakiko SugiuraKazuaki WatanabeTetsuo YoshiokaHisanaga Matsuoka
    • G01N9/24
    • G01H11/08
    • An ultrasonic sensor includes an ultrasonic detecting element, an acoustic matching member, and an oscillation damping member. The ultrasonic detecting element detects an ultrasonic wave. The acoustic matching member has a receiving surface that is adapted on a side of the certain object to be exposed to a space, in which the detected body exists. The receiving surface receives the ultrasonic wave reflected by the detected body. The acoustic matching member is made of a material having an acoustic impedance larger than that of air and smaller than that of the ultrasonic detecting element. The oscillation damping member is disposed between an attachment portion and the acoustic matching member. The attachment portion is adapted for attaching the ultrasonic sensor to the certain object. The oscillation damping member damps transmission of oscillation from the certain object to the acoustic matching member.
    • 超声波传感器包括超声波检测元件,声匹配元件和振荡阻尼元件。 超声波检测元件检测超声波。 声匹配构件具有接收表面,该接收表面适于在某一物体的一侧暴露于被检测体存在的空间。 接收表面接收被检测体反射的超声波。 声匹配构件由声阻抗大于空气的声阻抗小于超声波检测元件的材料制成。 振动阻尼构件设置在安装部分和声匹配构件之间。 附接部分适于将超声波传感器附接到该物体。 振动阻尼构件阻止从特定物体到声匹配构件的振荡传播。