Acoustic Transducer Incorporating an Electromagnetic Interference Shielding as Part of Matching Layers
    1.
    发明申请
    Acoustic Transducer Incorporating an Electromagnetic Interference Shielding as Part of Matching Layers 审中-公开
    声学传感器结合电磁干扰屏蔽作为匹配层的一部分

    公开(公告)号:US20120157853A1

    公开(公告)日:2012-06-21

    申请号:US12968961

    申请日:2010-12-15

    IPC分类号: A61B8/00

    摘要: Ultrasound probes, and methods of forming probes, with electromagnetic shielding and/or improved heat management are provided. Certain probes include an acoustic stack including an active layer, a protection face plate or lens, and a matching layer. The matching layer includes a mass layer and a spring layer. The probe further includes a cable configured to communicate signals to and from the ultrasound probe. The probe further includes an electromagnetic radiation shield comprising the mass layer. The shield encompasses the active layer and the cable, and is grounded via an electrode. The shield is configured to inhibit external electromagnetic radiation from interfering with the signals communicated to and from the ultrasound probe via the cable. Certain probes are configured such that the mass layer is thermally connected to a thermal drain or a heat sink such that heat is conducted away from the protection face plate or lens.

    摘要翻译: 提供了超声波探头和形成探头的方法,具有电磁屏蔽和/或改进的热管理。 某些探针包括包括有源层,保护面板或透镜以及匹配层的声音堆叠。 匹配层包括质量层和弹簧层。 探针还包括配置成将信号传送到超声波探头和从超声探头传递信号的电缆。 探针还包括包含质量层的电磁辐射屏蔽。 屏蔽层包括有源层和电缆,并通过电极接地。 屏蔽被配置为禁止外部电磁辐射干扰经由电缆与超声探头通信的信号。 某些探针被配置成使得质量层热连接到散热器或散热器,使得热量从保护面板或透镜导出。

    Ultrasound transducer with improved acoustic performance
    2.
    发明授权
    Ultrasound transducer with improved acoustic performance 有权
    超声波换能器具有改善的声学性能

    公开(公告)号:US08207652B2

    公开(公告)日:2012-06-26

    申请号:US12485226

    申请日:2009-06-16

    IPC分类号: H01L41/08

    摘要: A system for improving the acoustic performance of an ultrasound transducer by reducing artifacts within the acoustic spectrum is disclosed. The system includes an acoustic layer having an array of acoustic elements, a dematching layer coupled to the acoustic layer and having an acoustic impedance greater than an acoustic impedance of the acoustic layer, and an interposer layer coupled to the dematching layer and comprising a substrate and a plurality of conductive element. The interposer layer is formed to have an acoustic impedance lower than the acoustic impedance of the dematching layer. The ultrasound transducer also includes an integrated circuit coupled to the interposer layer and electrically connected to the array of acoustic elements through the dematching layer and the interposer layer.

    摘要翻译: 公开了一种通过减少声谱内的伪像来改善超声换能器的声学性能的系统。 该系统包括具有声学元件阵列的声学层,耦合到声学层并且具有大于声学层的声学阻抗的声阻抗的解映射层,以及耦合到分离层的中介层,并且包括衬底和 多个导电元件。 内插层形成为具有低于分配层的声阻抗的声阻抗。 超声波换能器还包括耦合到插入层的集成电路,并通过分配层和插入层电连接到声学元件阵列。

    Method for optimized dematching layer assembly in an ultrasound transducer
    6.
    发明授权
    Method for optimized dematching layer assembly in an ultrasound transducer 有权
    用于在超声换能器中优化分层组件的方法

    公开(公告)号:US07621028B2

    公开(公告)日:2009-11-24

    申请号:US11900699

    申请日:2007-09-13

    IPC分类号: H04R17/10

    摘要: A method for manufacturing an acoustical stack for use within an ultrasound transducer comprises using a user defined center operating frequency of an ultrasound transducer that is at least about 2.9 MHz. A piezoelectric material and a dematching material are joined with an assembly material to form an acoustical connection therebetween. The piezoelectric material has a first acoustical impedance and *at least one of* an associated piezoelectric rugosity (Ra) and piezoelectric waviness (Wa). The dematching material has a second acoustical impedance that is different than the first acoustical impedance and at least one of an associated dematching Ra and dematching Wa. The piezoelectric and dematching materials have an impedance ratio of at least 2. The assembly material has a thickness that is based on the center operating frequency and at least one of the piezoelectric Ra, piezoelectric Wa, dematching Ra and dematching Wa.

    摘要翻译: 用于在超声换能器内使用的用于制造声学叠层的方法包括使用至少约2.9MHz的超声换能器的用户定义的中心工作频率。 压电材料和分配材料与组装材料接合以在它们之间形成声学连接。 压电材料具有第一声阻抗和*相关的压电粗糙度(Ra)和压电波纹(Wa)中的至少一个。 解配材料具有不同于第一声阻抗的第二声阻抗和相关联的分配Ra和分配Wa中的至少一个。 压电和解配材料的阻抗比至少为2.组装材料具有基于中心工作频率的厚度和压电Ra,压电Wa,分配Ra和分配Wa中的至少一个。

    Method and apparatus for optimized dematching layer assembly in an ultrasound transducer
    7.
    发明申请
    Method and apparatus for optimized dematching layer assembly in an ultrasound transducer 有权
    用于在超声波换能器中优化分层组件的方法和装置

    公开(公告)号:US20090072668A1

    公开(公告)日:2009-03-19

    申请号:US11900699

    申请日:2007-09-13

    IPC分类号: H01L41/22 H01L41/00

    摘要: A method for manufacturing an acoustical stack for use within an ultrasound transducer comprises using a user defined center operating frequency of an ultrasound transducer that is at least about 2.9 MHz. A piezoelectric material and a dematching material are joined with an assembly material to form an acoustical connection therebetween. The piezoelectric material has a first acoustical impedance and *at least one of* an associated piezoelectric rugosity (Ra) and piezoelectric waviness (Wa). The dematching material has a second acoustical impedance that is different than the first acoustical impedance and at least one of an associated dematching Ra and dematching Wa. The piezoelectric and dematching materials have an impedance ratio of at least 2. The assembly material has a thickness that is based on the center operating frequency and at least one of the piezoelectric Ra, piezoelectric Wa, dematching Ra and dematching Wa.

    摘要翻译: 用于在超声换能器内使用的用于制造声学叠层的方法包括使用至少约2.9MHz的超声换能器的用户定义的中心工作频率。 压电材料和分配材料与组装材料接合以在它们之间形成声学连接。 压电材料具有第一声阻抗和*相关的压电粗糙度(Ra)和压电波纹(Wa)中的至少一个。 解配材料具有不同于第一声阻抗的第二声阻抗和相关联的分配Ra和分配Wa中的至少一个。 压电和解配材料的阻抗比至少为2.组装材料具有基于中心工作频率的厚度和压电Ra,压电Wa,分配Ra和分配Wa中的至少一个。

    ULTRASOUND TRANSDUCER WITH IMPROVED ACOUSTIC PERFORMANCE
    9.
    发明申请
    ULTRASOUND TRANSDUCER WITH IMPROVED ACOUSTIC PERFORMANCE 有权
    超声波传感器具有改进的声音性能

    公开(公告)号:US20100317972A1

    公开(公告)日:2010-12-16

    申请号:US12485226

    申请日:2009-06-16

    IPC分类号: A61B8/14

    摘要: A system for improving the acoustic performance of an ultrasound transducer by reducing artifacts within the acoustic spectrum is disclosed. The system includes an acoustic layer having an array of acoustic elements, a dematching layer coupled to the acoustic layer and having an acoustic impedance greater than an acoustic impedance of the acoustic layer, and an interposer layer coupled to the dematching layer and comprising a substrate and a plurality of conductive element. The interposer layer is formed to have an acoustic impedance lower than the acoustic impedance of the dematching layer. The ultrasound transducer also includes an integrated circuit coupled to the interposer layer and electrically connected to the array of acoustic elements through the dematching layer and the interposer layer.

    摘要翻译: 公开了一种通过减少声谱内的伪像来改善超声换能器的声学性能的系统。 该系统包括具有声学元件阵列的声学层,耦合到声学层并且具有大于声学层的声学阻抗的声阻抗的解映射层,以及耦合到分离层的中介层,并且包括衬底和 多个导电元件。 内插层形成为具有低于分配层的声阻抗的声阻抗。 超声波换能器还包括耦合到插入层的集成电路,并通过分配层和插入层电连接到声学元件阵列。