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    Sensor receiver nulls and null steering
    11.
    发明授权
    Sensor receiver nulls and null steering 有权

    公开(公告)号：US10082560B2

    公开(公告)日：2018-09-25

    申请号：US14818932

    申请日：2015-08-05

    Applicant: PGS Geophysical AS

    Inventor： Paul Edwin Murray ,  Robert Alexis Peregrin Fernihough

    IPC: G01S5/22 ,  G01S15/87 ,  G01S15/88 ,  G01V1/36

    CPC classification number: G01S5/22 ,  G01S15/876 ,  G01S15/88 ,  G01V1/36 ,  G01V2210/32 ,  G01V2210/324 ,  G01V2210/3246

    Abstract: A method. In one embodiment there is provided a method in which a direction from a sensor position to a noise source is determined. A coordinate rotation is applied to a first set of signal values, wherein each signal value of the first set of signal values is based on an output of a corresponding component of a three-component particle motion sensor at the sensor position. The applying generates a rotated set of signal values. The coordinate rotation comprises a coordinate rotation transforming a first set of coordinate axes to a second set of coordinate axes, wherein the first set of coordinate axes has each coordinate axis aligned with a corresponding component of the three-component particle motion sensor at the sensor position, and the second set of coordinate axes comprises a first axis pointed in a direction opposite the direction from the sensor position to the noise source.

    Piezoelectric accelerometer
    14.
    发明授权
    Piezoelectric accelerometer 有权
    压电式加速度计

    公开(公告)号：US09470806B2

    公开(公告)日：2016-10-18

    申请号：US14145093

    申请日：2013-12-31

    Applicant: PGS Geophysical AS

    Inventor： Robert Alexis Peregrin Fernihough

    IPC: G01V1/00 ,  G01V1/16 ,  G01H11/08 ,  G01P15/09 ,  G01V1/38

    CPC classification number: G01H11/08 ,  G01P15/09 ,  G01P15/0922 ,  G01V1/162 ,  G01V1/38

    Abstract: An accelerometer. At least some of the example embodiments include an accelerometer having a first piezoelectric element having a first polarization, the first piezoelectric element defining an upper surface and a second piezoelectric element having a second polarization, the second piezoelectric element defines a lower surface parallel to the upper surface of the first piezoelectric element; the first polarization being aligned with the second polarization. The accelerometer further includes a first mounting plate that defines a first aperture, the first and second piezoelectric elements extending through the first aperture such that the first mounting plate transects the first and second piezoelectric elements. The piezoelectric elements define a first cantilever portion on a first side of the first mounting plate, and the piezoelectric elements define a second cantilever portion on a second side of the first mounting plate opposite the first side.

    Abstract translation: 加速度计 示例性实施例中的至少一些包括具有第一极化的第一压电元件的加速度计，所述第一压电元件限定上表面和具有第二极化的第二压电元件，所述第二压电元件限定与所述上表面平行的下表面 第一压电元件的表面; 第一极化与第二极化对准。 加速度计还包括限定第一孔的第一安装板，第一和第二压电元件延伸穿过第一孔，使得第一安装板横切第一和第二压电元件。 压电元件在第一安装板的第一侧上限定第一悬臂部分，并且压电元件在第一安装板的与第一侧相对的第二侧上限定第二悬臂部分。

    PIEZOELECTRIC ACCELEROMETER
    16.
    发明申请
    PIEZOELECTRIC ACCELEROMETER 审中-公开

    公开(公告)号：US20180058917A1

    公开(公告)日：2018-03-01

    申请号：US15804756

    申请日：2017-11-06

    Applicant: PGS Geophysical AS

    Inventor： Robert Alexis Peregrin Fernihough

    IPC: G01H11/08 ,  G01P15/09 ,  G01V1/16 ,  G01V1/38

    CPC classification number: G01H11/08 ,  G01P15/09 ,  G01P15/0922 ,  G01V1/162 ,  G01V1/38

    Abstract: At least some of the example embodiments are methods including measuring motion of a body by deflecting a first cantilever portion of a sensing element, and deflecting a second cantilever portion of a sensing element, the second cantilever element of the sensing element disposed opposite the first cantilever element. A first voltage having a first polarity is created across electrical leads responsive to the deflecting of the cantilever portions opposite the direction of the first acceleration of the body. The sensing element is supported by way of a mounting plate medially disposed on the sensing element.

    Piezoelectric accelerometer
    17.
    发明授权
    Piezoelectric accelerometer 有权

    公开(公告)号：US09841317B2

    公开(公告)日：2017-12-12

    申请号：US15264231

    申请日：2016-09-13

    Applicant: PGS Geophysical AS

    Inventor： Robert Alexis Peregrin Fernihough

    IPC: G01P15/00 ,  G01H11/08 ,  G01P15/09 ,  G01V1/16 ,  G01V1/38

    CPC classification number: G01H11/08 ,  G01P15/09 ,  G01P15/0922 ,  G01V1/162 ,  G01V1/38

    Abstract: At least some of the example embodiments are methods including measuring motion of a body by deflecting a first cantilever portion of a sensing element, and deflecting a second cantilever portion of a sensing element, the second cantilever element of the sensing element disposed opposite the first cantilever element. A first voltage having a first polarity is created across electrical leads responsive to the deflecting of the cantilever portions opposite the direction of the first acceleration of the body. The sensing element is supported by way of a mounting plate medially disposed on the sensing element.

    Hydrophone
    19.
    发明授权
    Hydrophone 有权

    公开(公告)号：US09784861B2

    公开(公告)日：2017-10-10

    申请号：US14569066

    申请日：2014-12-12

    Applicant: PGS Geophysical AS

    Inventor： Robert Alexis Peregrin Fernihough

    IPC: G01V1/40 ,  G01V1/18 ,  G01H9/00 ,  G01V1/38

    CPC classification number: G01V1/186 ,  G01H9/004 ,  G01V1/188 ,  G01V1/38 ,  G01V1/40

    Abstract: This disclosure is related to hydrophones, for example hydrophones that may be used in marine seismic surveying, permanent reservoir monitoring, downhole acoustic monitoring in a wellbore, and/or various other applications. Some embodiments of a hydrophone according to this disclosure are constructed such that a longitudinal stiffness of the hydrophone is greater than a circumferential stiffness of the hydrophone. In some embodiments, however, the longitudinal stiffness may be somewhat less than the circumferential stiffness. For example, the longitudinal stiffness may be greater than one half the circumferential stiffness in some cases.

    TUBE REATTACHMENT
    20.
    发明申请
    TUBE REATTACHMENT 有权
    管重新安装

    公开(公告)号：US20170038533A1

    公开(公告)日：2017-02-09

    申请号：US15169146

    申请日：2016-05-31

    Applicant: PGS Geophysical AS

    Inventor： Matthew Segsworth ,  Jeremy Smith ,  Robert Alexis Peregrin Fernihough ,  Jeff Bowlus

    IPC: G02B6/255 ,  G02B6/44 ,  G02B6/50

    CPC classification number: G02B6/2558 ,  G02B6/441 ,  G02B6/4416 ,  G02B6/4427 ,  G02B6/4432 ,  G02B6/506

    Abstract: Tube reattachment. At least some illustrative embodiments are including a method exposing a first optical fiber and a second optical fiber disposed within an interior volume of a first tube. A splice is formed between the first optical fiber and a third optical fiber, the splice joining an end of the first optical fiber and an end of the third optical fiber. A second tube is disposed the first, second, third optical fibers and the splice between the first and third optical fibers, wherein an end of the second tube adjoins an end of the first tube to form a structure comprising either an overlapping structure; or an abutting structure.

    Abstract translation: 管重新附着。 至少一些说明性实施例包括暴露设置在第一管的内部容积内的第一光纤和第二光纤的方法。 在第一光纤和第三光纤之间形成接合，接合第一光纤的端部和第三光纤的端部。 第二管设置在第一和第三光纤之间的第一，第二，第三光纤和接头之间，其中第二管的端部与第一管的端部相邻以形成包括重叠结构的结构; 或邻接结构。

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