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130 条记录 (耗时 0.019 秒)

    OSCILLATOR IN LIQUID
    22.
    发明公开
    OSCILLATOR IN LIQUID 审中-公开
    EINERFLÜSSIGKEIT的OSZILLATOR

    公开(公告)号：EP2377120A4

    公开(公告)日：2017-03-08

    申请号：EP09836133

    申请日：2009-12-29

    申请人： PATRIA AVIATION OY

    发明人： LAINE ARTO

    IPC分类号： G10K9/12 ,  G01V1/145 ,  H01L41/09 ,  H04R1/44

    CPC分类号： G10K9/121 ,  G01V1/145

    摘要： A oscillator in a liquid includes an actuator element oscillating in a reciprocating manner, and a sound-producing element attached to the actuator element, whereby the actuator element generates a motion in the sound-producing element for producing a sound. The oscillator is made open, whereby the pressure of liquid acts both on a first surface and on a second surface of the wall of the sound-producing element while the sound source is in the liquid. The material and/or structure of the wall of the sound-producing element is provided to be such that the distance between the first surface and the second surface of the wall varies as sound is produced.

    摘要翻译： 液体中的振荡器包括以往复方式摆动的致动器元件和附接到致动器元件的发声元件，由此致动器元件在声音产生元件中产生用于产生声音的运动。 振荡器打开，由此在声源处于液体中时，液体的压力同时作用在声音产生元件的壁的第一表面和第二表面上。 发声元件的壁的材料和/或结构被设置为使得当产生声音时，壁的第一表面和第二表面之间的距离变化。

    FLEXTENSIONAL TRANSDUCERS AND RELATED METHODS
    24.
    发明公开
    FLEXTENSIONAL TRANSDUCERS AND RELATED METHODS 审中-公开
    FLEXTENSIONALER转换器和相关程序

    公开(公告)号：EP3090427A2

    公开(公告)日：2016-11-09

    申请号：EP14830474.4

    申请日：2014-12-30

    申请人： Photosonix Medical, Inc.

    发明人： SCHAFER, Mark, E.

    IPC分类号： G10K9/12 ,  H02N2/04

    CPC分类号： B06B1/0644 ,  G10K9/121 ,  H04R17/005

    摘要： Flextensional transducers and methods of using flextensional transducers. The transducer includes a piezoelectric element and may include at least one endcap coupled with the piezoelectric element. The endcap may have an outer portion formed of a first material and an inner portion formed of a second material having a greater flexibility than the first material. The endcap may be coupled with an annular piezoelectric element near either its outer circumference or its inner circumference. The piezoelectric element may be a planar disk or have a curved bowl-shape. The transducer may be coupled with, and at least partially restrained by, a support structure. The transducer may also be configured to permit light to pass therethrough.

    Marine seismic vibrators and methods of use
    25.
    发明公开
    Marine seismic vibrators and methods of use 审中-公开
    Seismische Marinevibratoren und Verwendungsverfahren

    公开(公告)号：EP2764929A2

    公开(公告)日：2014-08-13

    申请号：EP14153815.7

    申请日：2014-02-04

    申请人： PGS Geophysical AS

    发明人： Tenghamn, Stig Rune Lennart

    IPC分类号： B06B1/02 ,  G01V1/145

    CPC分类号： G01V1/04 ,  B06B1/0276 ,  B06B1/045 ,  G01V1/005 ,  G01V1/145 ,  G01V1/38 ,  G01V2210/1214 ,  G01V2210/1293 ,  G10K9/121

    摘要： Embodiments relate to marine seismic vibrators for use in seismic surveying and associated methods of use. An embodiment provides a marine seismic vibrator (10) comprising: a shell (26) having a spring constant selected to provide a first resonance frequency within an operational frequency range of about 1 Hz and about 300 Hz; a driver (36) disposed within the shell (26) and having a first end and a second end; and a spring element coupled to the shell between the first end and the second end of the driver, wherein the spring element has a second mode of oscillation that provides a second resonance frequency within the operational frequency range.

    摘要翻译： 实施例涉及用于地震测量和相关使用方法的海洋地震振动器。 一个实施例提供了一种海洋地震振动器（10），包括：壳体（26），其弹簧常数被选择为在约1Hz和约300Hz的工作频率范围内提供第一共振频率; 设置在壳体（26）内并具有第一端和第二端的驱动器（36） 以及弹簧元件，其联接到所述驱动器的第一端和所述第二端之间的壳体，其中所述弹簧元件具有在工作频率范围内提供第二共振频率的第二振荡模式。

    Underwater sound source comprising piezoelectric or magnetostrictive rods
    28.
    发明公开
    Underwater sound source comprising piezoelectric or magnetostrictive rods 审中-公开
    水声源具有压电或磁致伸缩杆

    公开(公告)号：EP1489593A3

    公开(公告)日：2008-07-02

    申请号：EP04102658.4

    申请日：2004-06-11

    申请人： Patria Advanced Solutions Oy

    发明人： Laine, Arto

    IPC分类号： G10K9/12

    CPC分类号： G10K9/121

    摘要： A sound source comprising an actuator element (1) that vibrates in a reciprocating manner such that the distance between the ends of the actuator element (1) varies. To the ends of the actuator element (1) there is attached a spring element (3) that moves by the action of the actuator element. In lateral view the spring element (3) is substantially rectangular. The ends (3a) of the spring element rectangle are elastic and so are the sides (3b) of the rectangle. The ends (3a) and the sides (3b) are joined together by substantially rigid corners (3c).

    Underwater sound source comprising piezoelectric or magnetostrictive rods
    29.
    发明公开
    Underwater sound source comprising piezoelectric or magnetostrictive rods 审中-公开
    Stäben的Unterwasserschallquelle mit piezoelektrischen oder magnetostriktiven

    公开(公告)号：EP1489593A2

    公开(公告)日：2004-12-22

    申请号：EP04102658.4

    申请日：2004-06-11

    申请人： Patria Advanced Solutions Oy

    发明人： Laine, Arto

    IPC分类号： G10K9/12

    CPC分类号： G10K9/121

    摘要： A sound source comprising an actuator element (1) that vibrates in a reciprocating manner such that the distance between the ends of the actuator element (1) varies. To the ends of the actuator element (1) there is attached a spring element (3) that moves by the action of the actuator element. In lateral view the spring element (3) is substantially rectangular. The ends (3a) of the spring element rectangle are elastic and so are the sides (3b) of the rectangle. The ends (3a) and the sides (3b) are joined together by substantially rigid corners (3c).

    摘要翻译： 一种声源，包括致动器元件（1），所述致动器元件（1）以往复方式振动，使得所述致动器元件（1）的端部之间的距离变化。 致动器元件（1）的端部附接有通过致动器元件的作用而移动的弹簧元件（3）。 在侧视图中，弹簧元件（3）基本上是矩形的。 弹簧元件矩形的端部（3a）是弹性的，矩形的边（3b）也是弹性元件。 端部（3a）和侧面（3b）通过大致刚性的角部（3c）连接在一起。

    Self biased transducer assembly and high voltage drive circuit
    30.
    发明公开
    Self biased transducer assembly and high voltage drive circuit 审中-公开
    甚至预应力换能器组件和高电压控制电路

    公开(公告)号：EP1039444A3

    公开(公告)日：2004-06-23

    申请号：EP00102908.1

    申请日：2000-02-12

    申请人： L-3 Communications Corporation

    发明人： Skinner, Colin W., Engineer ,  Xu, Qi-Change, Engineer

    IPC分类号： G10K9/12

    CPC分类号： G10K9/125 ,  G10K9/121

    摘要： An improved transducer arrangement for low frequency sonar projectors that convert electric signals to mechanically generated acoustic signals. In one embodiment the arrangement has both a convex flextensional transducer and a concave flextensional transducer. An open side of the convex transducer is attached to a open side of the concave transducer by an intermediate bulkhead which closes each of the attached open sides. An end plate is attached to another open side of the convex transducer and another end plate is attached to another open side of the concave transducer such that the end plates close the attached open sides. In another embodiment, transducer assembly has a convex transducer having end plates and a concave transducer having end plates. Either one of the endplates of the concave transducer is attached to one of the endplates of the convex transducer, or an endplate of the concave transducer is also an endplate of the concave transducer. There is also provided a transducer drive circuit including one of the transducer assemblies wherein the convex transducer is electrically connected in series with the concave transducer. Means are provided for positively direct current biasing the convex transducer or the concave transducer and oppositely negatively direct current biasing the concave transducer or the convex transducer. Further means apply an alternating current driving signal to each of the convex transducer and the concave transducer. This configuration provides an improvement over the prior art in reduced transducer size and weight by doing away with a large isolation capacitor from the drive circuitry.