ARRAYABLE LOUDSPEAKER WITH CONSTANT WIDE BEAMWIDTH
    105.
    发明公开
    ARRAYABLE LOUDSPEAKER WITH CONSTANT WIDE BEAMWIDTH 审中-公开
    带恒定宽角度的可调式扬声器

    公开(公告)号:EP3284268A1

    公开(公告)日:2018-02-21

    申请号:EP16780781.7

    申请日:2016-04-14

    摘要: An arrayable loudspeaker (11) has at least one high frequency driver (39) mounted to a horn (37) and at least one pair of low frequency drivers (41) configured behind and in a closely spaced relationship to the horn to form low frequency side chambers (71) between the drivers and the horn from which acoustic energy produced by the low frequency drivers can propagate. Low frequency exit channels (77) above and below the horn are coupled to the low frequency side chambers (71). The configuration of the horn and low frequency drivers and the low frequency side chambers and low frequency exit channels is such that acoustical outputs of all drivers radiate coaxially from the loudspeaker with substantially constant wide beamwidth in the non-arraying plane. Signal processing can be added to enhance beamwidth control critical frequency ranges above crossover.

    BESCHALLUNGSEINRICHTUNG
    106.
    发明公开

    公开(公告)号:EP3226237A3

    公开(公告)日:2017-12-27

    申请号:EP17160914.2

    申请日:2017-03-14

    申请人: Ic audio GmbH

    IPC分类号: G10K11/02 G10K13/00

    摘要: Die vorliegende Erfindung betrifft eine Beschallungseinrichtung mit einem Schallgeber, welcher eine Hauptabstrahlrichtung aufweist, und mit einem Horn in Form eines sich von einer Schalleintrittsöffnung aus zu einer Schallaustrittsöffnung trichterförmig erweiternden Hohlkörpers, der zumindest eine erste sich zwischen den Öffnungen erstreckende, eben Seitenfläche aufweist, wobei der Schallgeber an oder nahe der Schalleintrittsöffnung angeordnet ist. Um Grenzflächenreflektionen zumindest zu reduzieren und um eine Beschallungseinrichtung mit einer gut ausgerichteten und wohldefinierten Schallwellenfront mit hohem Schalldruckpegel und einem ausgeglichen Frequenzgang bereitzustellen, wird erfindungsgemäß vorgeschlagen, dass der Schallgeber unmittelbar neben der (ersten) ebenen Seitenfläche oder einer gedachten Verlängerung derselben in der Weise angeordnet ist, dass seine Hauptabstrahlrichtung parallel zu der (ersten) ebenen Seitenfläche von der Schalleintritts- zu der Schallaustrittsöffnung hin verläuft.

    Acoustic matching member, ultrasonic transducer, ultrasonic flowmeter and method for manufacturing the same
    107.
    发明公开
    Acoustic matching member, ultrasonic transducer, ultrasonic flowmeter and method for manufacturing the same 审中-公开
    的声匹配体,超声波换能器,超声波流量计,以及制备方法

    公开(公告)号:EP1363269A3

    公开(公告)日:2017-05-03

    申请号:EP03009831.3

    申请日:2003-05-13

    IPC分类号: G10K11/02

    摘要: An acoustic matching member (100) that is incorporated into an ultrasonic transducer for transmitting and receiving ultrasonic waves, includes: at least two layers including a first layer (11) and a second layer (12) that have different acoustic impedance values from each other. The first layer (11) is made of a composite material of a porous member (1) and a filling material (2) supported by void portions of the porous member (1), the second layer (12) is made of the filling material (2) or the porous member (1), and the first layer (11) and the second layer (12) are present in this stated order. A piezoelectric member is disposed on a side of the first layer (11) of the acoustic matching member (100) to form an ultrasonic transducer or an ultrasonic flowmeter. The acoustic matching member (100) does not have independent intermediate layers between the layers, so that delamination hardly occurs and the difficulty in the designing associated with the presence of intermediate layers can be avoided.

    摘要翻译: 的声匹配体(100)也被并入在超声换能器用于发射和接收超声波,包括:至少两个层包括第一层(11)和第二层(12)从海誓山盟thathave不同的声阻抗值 , 由多孔构件(1)的空隙部的第一层(11)由多孔质构件(1)和填充材料的复合材料的(2)支撑,所述第二层(12)由所述填充材料的 (2)或多孔部件(1),并且所述第一层(11)和第二层(12)存在于该所述顺序。 一种压电部件上的声匹配构件(100)的第一层(11)的一个边设置,以在超声换能器或超声波流量计。 声匹配部件(100)不具有层与层之间的独立的中间层,所以没有脱层几乎没有发生,并且能够避免在与中间层的存在相关联的设计的困难。

    PROBE AND MANUFACTURING METHOD THEREOF
    109.
    发明公开
    PROBE AND MANUFACTURING METHOD THEREOF 审中-公开
    探针及其制造方法

    公开(公告)号:EP3040130A1

    公开(公告)日:2016-07-06

    申请号:EP15163036.5

    申请日:2015-04-09

    摘要: A probe (100) includes: a piezoelectric layer (111) to generate ultrasonic waves, a backing layer (112) to absorb ultrasonic waves generated at the piezoelectric layer and proceeding toward a rear, a reflective layer (113) occupying an area smaller than an area of the piezoelectric layer and provided in between the piezoelectric layer and the backing layer to amplify the ultrasonic waves generated at the piezoelectric layer, and a lens layer (115) to focus the ultrasonic waves proceeding toward a front of the piezoelectric layer at a certain point.

    摘要翻译: 本发明的探针(100)包括:产生超声波的压电层(111);吸收在压电层产生并朝向后方的超声波的背层(112);反射层(113),其占据小于 所述压电层的区域设置在所述压电层和所述背衬层之间以放大在所述压电层处产生的超声波;以及透镜层(115),用于将所述超声波聚焦到所述压电层的前方 某一点。

    Ultrasound probe with optimized thermal management
    110.
    发明公开
    Ultrasound probe with optimized thermal management 有权
    Ultraschallsonde mit optimierter thermischer Verwaltung

    公开(公告)号:EP2992829A1

    公开(公告)日:2016-03-09

    申请号:EP14183233.7

    申请日:2014-09-02

    申请人: Esaote S.p.A.

    IPC分类号: A61B8/00 G10K11/02 B06B1/06

    摘要: An ultrasound probe comprising a housing, a transducer assembly operable to transmit ultrasonic energy towards a zone of the probe adapted to be acoustically coupled to an object or area of interest, a cooling system comprising a heat transfer device arranged to transfer heat generated by the transducer assembly to one or more regions or areas located outside such transducer assembly. The heat transfer device comprises a graphene-based material.

    摘要翻译: 一种超声波探头,包括壳体,换能器组件,其可操作以将超声能量朝向适于声学耦合到感兴趣的物体或区域的探头区域传输;冷却系统,包括传热装置,其被布置成传递由换能器产生的热量 组装到位于该换能器组件外部的一个或多个区域或区域。 传热装置包括基于石墨烯的材料。