Marine streamer cable
    511.
    发明授权
    Marine streamer cable 失效
    海上电缆

    公开(公告)号:US3710006A

    公开(公告)日:1973-01-09

    申请号:US3710006D

    申请日:1971-07-01

    Inventor: DAVIS B

    CPC classification number: H01B7/045 G01V1/201 H01B7/12

    Abstract: A marine streamer cable of layered solid construction and having substantially the same composition density as sea water, comprising a flotation layer surrounding a cable core having as a central stress member a polypropylene rope made with paralleled fibers held together by an extruded plastic jacket, the use of which minimizes the weight of the cable and serves to greatly attenuate the propagation along the cable of mechanical noise.

    Abstract translation: 一种具有层状固体结构并且具有与海水基本相同的组成密度的海洋拖缆,包括围绕具有作为中心应力构件的电缆芯的浮选层,由通过挤压塑料夹套保持在一起的平行纤维制成的聚丙烯绳索, 其最小化电缆的重量并且用于大大衰减沿着电缆的机械噪声的传播。

    Pressure sensitive hydrophone
    512.
    发明授权
    Pressure sensitive hydrophone 失效
    压力感应式疏水阀

    公开(公告)号:US3660809A

    公开(公告)日:1972-05-02

    申请号:US3660809D

    申请日:1970-06-29

    CPC classification number: G01V1/201

    Abstract: A marine hydrophone for producing electrical signals responsive to sound pressure waves in water, and especially adapted for use in towed seismic streamers. The hydrophone includes an annular piezoelectric ring with electroded inner and outer surfaces and a pair of thin circular diaphragms covering the opposite ends of the ring. The diaphragm portions within the inner surface of the ring are permanently formed inwardly toward each other. An assembly of a pair of such hydrophones supported by resilient rings on opposite ends of an axially elongated support cylinder mounted within an cylindrical enclosure having perforated end caps and mounted by a resilient tube between streamer spaces is also disclosed.

    Abstract translation: 一种用于产生响应于水中声压波的电信号的海洋水听器,特别适用于拖曳的地震拖缆。 水听器包括具有电内表面和外表面的环形压电环和覆盖环的相对端的一对薄的圆形隔膜。 环的内表面内的隔膜部分彼此永久地向内形成。 还公开了一对这样的水听器的组件,其由安装在具有穿孔端盖的圆柱形外壳中并由弹性管安装在流光空间之间的轴向细长支撑圆筒的相对端上的弹性环支撑。

    woodworth
    519.
    发明授权

    公开(公告)号:US2923916A

    公开(公告)日:1960-02-02

    申请号:US2923916D

    CPC classification number: G01V1/201

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