Noise-cancelling streamer cable
    491.
    发明授权
    Noise-cancelling streamer cable 失效
    降噪流光缆

    公开(公告)号:US4821241A

    公开(公告)日:1989-04-11

    申请号:US197228

    申请日:1988-05-23

    Inventor: Carl O. Berglund

    CPC classification number: G01V1/36 G01V1/201 G01V2210/3244

    Abstract: In a seismic streamer cable, stress sensors are co-located with the hydrophones in the cable. The stress sensors are responsive to mechanical stresses applied to the cable but it are substantially unresponsive to acoustic waves propagating in fluid media. The signal outputs from the stress sensors are combined with the signal outputs from the corresponding co-located hydrophones to cancel spurious signals due to bulge waves.

    Abstract translation: 在地震拖缆中,应力传感器与电缆中的水听器共同定位。 应力传感器响应于施加到电缆的机械应力,但是对在流体介质中传播的声波基本上没有响应。 来自应力传感器的信号输出与来自相应的同位置水听器的信号输出组合,以消除由于凸起波引起的寄生信号。

    Integrated hydrophone preamplifier telemetry assembly
    492.
    发明授权
    Integrated hydrophone preamplifier telemetry assembly 失效
    集成水听器前置放大器遥测组件

    公开(公告)号:US4819216A

    公开(公告)日:1989-04-04

    申请号:US481173

    申请日:1983-04-01

    Inventor: Dominic Fraioli

    CPC classification number: G01V1/201

    Abstract: For a simplified towed array configuration an integrated hydrophone, preamplifier and telemetry hybrid unit suitable for connecting with a single coaxial cable was developed. The preamplifier and FM hydrophone telemetry assembly comprises an air backed ceramic assembly connected to a preamplifier/voltage control oscillator chip. In addition the chip includes a regulator and power separation network.

    Abstract translation: 对于简化的牵引阵列配置,开发了适用于与单个同轴电缆连接的集成水听器,前置放大器和遥测混合单元。 前置放大器和FM水听器遥测组件包括连接到前置放大器/压控振荡器芯片的空气支撑陶瓷组件。 此外,该芯片还包括一个稳压器和功率分配网络。

    Termination apparatus for a marine streamer employing a flexible load
bearing outer hosewall
    493.
    发明授权
    Termination apparatus for a marine streamer employing a flexible load bearing outer hosewall 失效
    船用拖缆的终端装置,采用柔性承载外套件

    公开(公告)号:US4759001A

    公开(公告)日:1988-07-19

    申请号:US31057

    申请日:1987-03-27

    CPC classification number: G01V1/201 Y10T24/3916 Y10T24/3933

    Abstract: A hosewall terminating apparatus for a streamer section utilizing a load bearing flexible hosewall includes an inner sleeve having radially extending outward protrusions and an outer sleeve having radially extending inward protrusions. With the inner sleeve positioned within the outer sleeve, the radial distance between ends of these protrusions are spaced-apart to provide a gap for the position of the flexible hosewall of the streamer section. The hosewall of the streamer section is secured between these protrusions and the sleeve surfaces when the outer sleeve is reduced in diameter by swaging.

    Abstract translation: 一种用于承载柔性饮料的拖缆部分的饮料装置终端装置包括具有径向延伸的向外突出的内套筒和具有径向延伸的向内突出物的外套筒。 当内套筒定位在外套筒内时,这些突起的端部之间的径向距离是间隔开的,以为拖缆部分的柔性木器的位置提供间隙。 当外套筒通过锻造而直径减小时,拖缆部分的木质部件固定在这些突起和套筒表面之间。

    Angular member for seismic cables towed by a vessel
    494.
    发明授权
    Angular member for seismic cables towed by a vessel 失效
    由船只拖曳的地震电缆的角部件

    公开(公告)号:US4756268A

    公开(公告)日:1988-07-12

    申请号:US15373

    申请日:1987-02-17

    CPC classification number: G01V1/201 B63B21/66

    Abstract: 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.

    Abstract translation: 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。

    Line array transducer assembly
    495.
    发明授权
    Line array transducer assembly 失效
    线阵传感器组件

    公开(公告)号:US4733379A

    公开(公告)日:1988-03-22

    申请号:US840603

    申请日:1986-03-17

    CPC classification number: B06B1/0629 G01V1/201 H01L41/257 H01L41/29

    Abstract: A flexible line array transducer assembly for detecting underwater acoustical signals. The assembly includes an array of spaced-apart piezoelectric elements arranged generally in a line and selected to have low cross-coupling characteristics, low sensitivity to incoherent mechanical perturbations in the directions longitudinal and lateral to the axis of the array, and high sensitivity to coherent mechanical perturbations such as acoustical signals. The elements are polarized in a direction generally transverse to the array and each include opposing surface areas which are generally parallel with the linear axis of the array. Electrodes are disposed on the opposing surface areas of the elements and are coupled to conductors which carry signals produced by the piezoelectric elements when the elements are stressed by acoustical signals. A porous, open-cell material is disposed about the piezoelectric elements as an encasement to maintain the elements in place and mechanically isolate the elements. An outer, water-tight jacket encloses the open cell material and holds a fill fluid carried within the open-cell material. An electrically conductive flexible sleeve may be placed either about the open-cell material or about the outer jacket to shield the piezoelectric elements from electromagnetic waves.

    Abstract translation: 用于检测水下声学信号的柔性线阵转换器组件。 该组件包括一组间隔开的压电元件,其通常排列成一列并被选择为具有低交叉耦合特性,对阵列轴线纵向和横向方向上的非相干机械扰动的低灵敏度以及对相干的高灵敏度 机械扰动,如声信号。 元件在大致横向于阵列的方向上极化,并且每个元件包括大致平行于阵列的线性轴线的相对的表面区域。 电极设置在元件的相对的表面区域上,并且当元件受到声学信号的应力时,它们连接到承载由压电元件产生的信号的导体。 多孔的开孔材料围绕压电元件设置为封装,以将元件保持在适当位置并机械隔离元件。 外部的防水护套围绕开放的细胞材料并保持在开放细胞材料内携带的填充液体。 导电柔性套管可以围绕开孔材料或围绕外护套放置以屏蔽压电元件免受电磁波。

    Magnetostrictive acoustic transducer
    496.
    发明授权
    Magnetostrictive acoustic transducer 失效
    磁致伸缩声换能器

    公开(公告)号:US4716556A

    公开(公告)日:1987-12-29

    申请号:US286214

    申请日:1981-07-23

    CPC classification number: B06B1/08 G01V1/201

    Abstract: An acoustic transducer is provided that uses a layer of magnetostrictive ferromagnetic material having high magneto-mechanical coupling. The ferromagnetic material is adhered to a part of the outer surface of a resilient rod, so that an incident acoustic signal causes a change in stress in the magnetic material and, in turn, a change in the material's magnetization. An electrical coil surrounds the magnetic material and converts the changing magnetization into an electrical signal. A plurality of transducers may be assembled into an array and towed behind a ship to detect underwater acoustic signals.

    Abstract translation: 提供了一种使用具有高磁 - 机耦合的磁致伸缩铁磁材料层的声换能器。 铁磁材料粘附到弹性棒的外表面的一部分上,使得入射的声学信号引起磁性材料中的应力变化,从而导致材料的磁化强度的变化。 电线圈包围磁性材料并将变化的磁化转换成电信号。 多个换能器可以组装成阵列并拖到船后面以检测水下声信号。

    Wavelength filter for marine seismic cables
    497.
    依法登记的发明
    Wavelength filter for marine seismic cables 失效
    海洋地震电缆波长滤波器

    公开(公告)号:USH387H

    公开(公告)日:1987-12-01

    申请号:US333524

    申请日:1981-12-22

    CPC classification number: G10K11/04 G01V1/201

    Abstract: A marine seismic cable comprising a core; a housing coupled to the core and having a cavity adapted for holding a hydrophone, the cavity being located on a first side of the housing; elastic material positioned in the cavity and extending beyond the boundary of the cavity, a hydrophone positioned in the elastic material in the cavity; and a rigid plate positioned adjacent to the elastic material.

    Seismic streamer section
    498.
    发明授权
    Seismic streamer section 失效
    地震拖缆段

    公开(公告)号:US4689774A

    公开(公告)日:1987-08-25

    申请号:US760578

    申请日:1985-07-30

    Inventor: Neil W. Cameron

    CPC classification number: G01V1/201

    Abstract: A hydrophone section for a seismic streamer towed array in which the hydrophones 2 are arranged in groups of not more than 7, the spacing of the hydrophones within each group being such that each group has an overall length l=0.8-1.2 m. The hydrophone mounts 5 and mechanical spacers 3 are attached at their periphery to aramid fibre strainwires 4. The hydrophone mounts and mechanical spacers are acoustically open structures.

    Abstract translation: 一种用于地震拖缆牵引阵列的水听器部分,其中水听器2以不大于7的组排列,每组中的水听器的间距使得每组具有总长度l =0.8-1.2μm。 水听器安装座5和机械间隔件3在其周边连接到芳纶纤维应变线4.水听器安装座和机械间隔件是声学打开的结构。

    Tubular article
    499.
    发明授权
    Tubular article 失效
    管状物品

    公开(公告)号:US4685090A

    公开(公告)日:1987-08-04

    申请号:US802507

    申请日:1985-11-27

    Inventor: David H. Krevor

    CPC classification number: G01V1/201

    Abstract: The invention relates to novel laminate tubular articles comprising an outer layer having a modulus of at least about 10.sup.7 Pascals, an interior layer comprising a polymeric material having a loss tangent of at least about 0.5 at a temperature of from about 0.degree. C. to about 40.degree. C. at a frequency of from 10-4,000 Hz and whose modulus is less than the modulus of the outer layer and an innermost layer having a modulus greater than the modulus of said interior layer. The invention further relates to a device for sensing in a body of water, said device comprising at least one sensor surrounded by the novel laminate tubular articles of the invention. The mechanical and acoustic properties of the article make it particularly appropriate for use as the hose in a towed-array sonar system.

    Abstract translation: 本发明涉及新颖的层压管状制品,其包括具有至少约107帕斯卡的模量的外层,内层包含在约0℃至约约0℃的温度下具有至少约0.5的损耗角正切的聚合材料 40℃,频率为10-4,000Hz,其模量小于外层的模量,最内层的模量大于所述内层的模量。 本发明还涉及用于在水体中感测的装置,所述装置包括由本发明的新颖的层压管状制品围绕的至少一个传感器。 该制品的机械和声学特性使其特别适合用作拖曳阵列声纳系统中的软管。

    Vibration isolation module
    500.
    发明授权
    Vibration isolation module 失效
    隔振模块

    公开(公告)号:US4628851A

    公开(公告)日:1986-12-16

    申请号:US685949

    申请日:1984-12-24

    Applicant: James Appling

    Inventor: James Appling

    CPC classification number: G01V1/201 B63G8/42

    Abstract: A vibration isolation module (30) includes termination members (34, 36) at each end to which are connected electrical wires or cable (39), and a braided rope of aramid fiber (32). A plurality of compliant members (40) of polyurethane hose having tapered ends are inserted at intervals within the braided strands of the rope (32). Some of the compliant members (40) may be filled solid with polyurethane. Variable lengths of hose or variable diameters and wall thicknesses may be used to vary the compliance of the compliant members (40). Between the compliant members (40) are positioned a number of spacer members (38) which provide support for the hose (37) and electrical wires (39). This structure is carried within an oil filled stretchable hose (37) fastened to the termination members. When the module (30) is subjected to forces in tension, the load is carried by the aramid fiber rope (32) which, as the load is increased, tends to squeeze down and compress the compliant members (40).

    Abstract translation: 振动隔离模块(30)包括在每端连接有电线或电缆(39)的端接构件(34,36)和芳纶纤维(32)的编织绳索。 多个具有锥形端部的聚氨酯软管的顺应构件(40)以绳索(32)的编织线段间隔地插入。 柔性构件(40)中的一些可以用聚氨酯填充固体。 可变长度的软管或可变直径和壁厚可用于改变顺应构件(40)的顺应性。 在顺应性构件(40)之间定位有多个间隔件(38),其为软管(37)和电线(39)提供支撑。 该结构承载在紧固到终端构件的充油的可伸缩软管(37)内。 当模块(30)受到张力的作用时,负载由芳族聚酰胺纤维绳(32)承载,当负载增加时,芳族聚酰胺纤维绳(32)倾向于挤压并压缩柔顺构件(40)。

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