公开(公告)号：US4679178A

公开(公告)日：1987-07-07

申请号：US777673

申请日：1985-09-19

申请人： Eigil Larsen ,  Eldar Lien ,  Clive Snook

发明人： Eigil Larsen ,  Eldar Lien ,  Clive Snook

IPC分类号： B06B1/06 ,  H04R17/00 ,  H01L41/04 ,  H01L41/08 ,  H01L41/18

CPC分类号： B06B1/0666

摘要： An arrangement in a piezoelectric hydrophone that is provided with a protective outer housing enveloping a waterproof closed casing (2). Said casing is provided with two mutually opposed and parallel diaphragm wafers (3) on the insides of which piezoelectric crystals (4) being metal coated on their outsides are respectively attached. A connecting wire is extended from said case through its hollow central portion (6). Said central portion (6) is formed by at least two ceramic elements (7) joined along a plane parallel with the diaphragm wafers and provided with a metalization (11) in the mutual contact areas (9, 10). In the cavities (12) respectively of the two elements (7) stiffening ceramic disks (8) are provided and attached to the elements (7) by the aid of a matching projection (13). The inward facing poles of the piezoelectric crystals are conductively connected with the metalization in the contact plane of the elements, and an additional wire (5) is provided from the metalization (11) on the outside. The poles facing outward of said crystals are connected via said diaphragm wafers (3) on the outside of the casing (2). The ceramic material used is Al.sub.2 O.sub.3 having a degree of purity of more than 85%.

摘要翻译： 一种压电水听器的布置，其设置有包围防水封闭壳体（2）的保护外壳体。 所述壳体在其外侧分别附着有金属涂覆的压电晶体（4）的内部设置有两个彼此相对且平行的膜片（3）。 连接线从所述壳体延伸穿过其中空中心部分（6）。 所述中心部分（6）由至少两个陶瓷元件（7）形成，所述至少两个陶瓷元件（7）沿着平行于所述光阑晶片的平面接合并且在相互接触区域（9,10）中设置有金属化（11）。 在两个元件（7）的空腔（12）中，加强陶瓷盘（8）被提供并借助于匹配突出部（13）附接到元件（7）。 压电晶体的向内的极与元件的接触平面中的金属化导电连接，并且从外部的金属化（11）提供附加的线（5）。 面对所述晶体外部的极通过所述隔膜晶片（3）连接在壳体（2）的外部。 使用的陶瓷材料是纯度大于85％的Al 2 O 3。

公开(公告)号：US4756268A

公开(公告)日：1988-07-12

申请号：US15373

申请日：1987-02-17

申请人： Einar Gjestrum ,  Rolf Bjerk y ,  Clive Snook ,  Julius Bendiksen ,  Jan-Age Langeland

发明人： Einar Gjestrum ,  Rolf Bjerk y ,  Clive Snook ,  Julius Bendiksen ,  Jan-Age Langeland

IPC分类号： B63B21/66 ,  G01V1/20 ,  B63B21/00

CPC分类号： G01V1/201 ,  B63B21/66

摘要： An angular member provided on seismic cables towed by a vessel and laterally displaced in parallel and in relation to the course of the vessel comprises a frame at least partly enclosing the cable in the area of angular deflection between an inner cable portion extending obliquely to the towing direction and the active main cable portion. The frame is formed of two frame plates secured in spaced relationship and having at the lead-in end for the cable a cable-fastening device and at the other end a pivotable ramp swingable in the plane of the frame plates. The ramp has a further fastening device for the cable. Another fastening device is pivotably connected to the frame plates for connecting thereto a wire to a paravane or the like. When towed in the water the angular member absorbs most of the forces normally exerted on the cable at the area of angular deflection.

摘要翻译： 设置在由船只拖曳并相对于船只行进的横向移位的地震缆索上的角构件包括：框架，其至少部分地围绕在垂直于拖曳部分延伸的内缆索部分之间的角度偏转区域 方向和主动主电缆部分。 框架由两个以相互间隔的关系固定的框架板形成，并且在引导端处具有电缆固定装置，另一端具有可在框架板的平面中摆动的可枢转斜面。 斜坡具有用于电缆的另外的紧固装置。 另一个紧固装置可枢转地连接到框架板上，用于将线连接到基座或类似物。 当在水中拖曳时，角构件在角度偏转的区域吸收通常施加在电缆上的大部分力。

公开(公告)号：US4597065A

公开(公告)日：1986-06-24

申请号：US601598

申请日：1984-04-18

申请人： Eldar K. Lien ,  Otto Benestad ,  Clive Snook

发明人： Eldar K. Lien ,  Otto Benestad ,  Clive Snook

IPC分类号： F16L11/12 ,  G01V1/38

CPC分类号： F16L11/12

摘要： A cable for towing air or water guns behind a seismic vessel is constructed with a reinforced air hose in the center region. The air hose (1) is a Kevlar fiber reinforced high pressure air hose with low air diffusion. Outside the hose, signal conductors are placed which are individually insulated with watertight coating and arranged substantially in a single layer of cylindrical elements (2) that are wound around the air hose (1). The interstices between the elements are filled with a water-repelling lubricant. Outside the layer of cylindrical elements (2) is a protective intermediate jacket (3) not intended primarily to have a water-sealing effect, and this is followed by tension-relieving elements (4) preferably disposed in two layers twisted in opposite directions around the intermediate jacket. An outer protective jacket (5) for the entire cable can be provided on the exterior. A cable constructed in this way provides a solution of the water-sealing problem. It is especially intended for digital data transmission.

摘要翻译： 用于在地震船后面牵引空气或水枪的电缆在中心区域用增强空气软管构成。 空气软管（1）是具有低空气扩散的凯夫拉尔纤维增强高压空气软管。 在软管的外面，放置信号导体，它们分别用水密性涂层绝缘并且基本上布置在卷绕在空气软管（1）上的单层圆柱形元件（2）中。 元件之间的空隙填充有防水润滑剂。 在圆柱形元件（2）之外的是保护性中间护套（3），其不是主要具有水密封效果的，而紧随其后的是释放张力的元件（4），优选地以相反方向扭转的两层 中间夹克。 外部可以提供整个电缆的外部保护套（5）。 以这种方式构造的电缆提供了水封问题的解决方案。 它特别适用于数字数据传输。