中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

20 records (took 0.018 seconds)

    METHOD OF MAKING AN ACOUSTIC SENSOR
    2.
    发明申请
    METHOD OF MAKING AN ACOUSTIC SENSOR 审中-公开

    公开(公告)号：US20200096658A1

    公开(公告)日：2020-03-26

    申请号：US16607924

    申请日：2018-04-25

    Applicant: Hifi Engineering Inc.

    Inventor： Arne Dankers ,  Seyed Ehsan Jalilian

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

    Abstract: There is described a method of making an acoustic sensor having a frequency response approximating a desired frequency response. The method comprises wrapping optical fiber around a core according to a wrapping pattern. The wrapping pattern is determined from an impulse response of the acoustic sensor. The impulse response is determined from the desired frequency response of the acoustic sensor.

    Method and system for detecting whether an acoustic event has occured along a fluid conduit
    4.
    发明授权
    Method and system for detecting whether an acoustic event has occured along a fluid conduit 有权

    公开(公告)号：US11428600B2

    公开(公告)日：2022-08-30

    申请号：US16625640

    申请日：2018-06-29

    Applicant: Hifi Engineering Inc.

    Inventor： Arne Dankers ,  Seyed Ehsan Jalilian ,  David Westwick

    IPC: G01M3/24 ,  G01H9/00

    Abstract: Methods, systems, and techniques for determining whether an acoustic event lias occurred along a fluid conduit iliat lias acoustic sensors positioned along its length. For each of the sensors, a processor is used to determine a linear relationship between a measured acoustic signal measured using the sensor and a white noise acoustic source located along a longitudinal segment of the fluid conduit overlapping the sensor. From the linear relationship, the processor determines an acoustic path response that includes an acoustic response of the longitudinal segment and an acoustic source transfer function dial transforms the white noise acoustic source. Over time, variations in the acoustic path responses and/or acoustic source transfer functions are monitored. When the event threshold is exceeded, the acoustic event is identified as having occurred along the longitudinal segment corresponding to the acoustic path response or acoustic source transfer function that varied in excess of the event threshold.

    METHOD AND SYSTEM FOR DETECTING WHETHER AN ACOUSTIC EVENT HAS OCCURRED ALONG A FLUID CONDUIT
    5.
    发明申请
    METHOD AND SYSTEM FOR DETECTING WHETHER AN ACOUSTIC EVENT HAS OCCURRED ALONG A FLUID CONDUIT 审中-公开

    公开(公告)号：US20190137045A1

    公开(公告)日：2019-05-09

    申请号：US16024513

    申请日：2018-06-29

    Applicant: Hifi Engineering Inc.

    Inventor： Seyed Ehsan Jalilian ,  Arne Dankers ,  David Westwick

    IPC: F17D5/06 ,  E21B47/12 ,  E21B47/10 ,  G01H9/00 ,  G01M3/24 ,  G01N29/14

    Abstract: Methods, systems, and techniques for determining whether an acoustic event has occurred along a fluid conduit having acoustic sensors positioned therealong. The method uses a processor to, for each of the sensors, determine a predicted acoustic signal using one or more past acoustic signals measured prior to measuring a measured acoustic signal using the sensor; determine a prediction error between the measured acoustic signal and the predicted acoustic signal; from the prediction error, determine a power estimate of an acoustic source located along a longitudinal segment of the fluid conduit overlapping the sensor; and determine whether the power estimate of the acoustic source exceeds an event threshold for the sensor. When the power estimate of at least one of the acoustic sources exceeds the event threshold, the processor attributes the acoustic event to one of the sensors for which the power estimate of the acoustic source exceeds the event threshold.

    METHODS OF WRAPPING OPTICAL FIBER AROUND A FLUID CONDUIT
    8.
    发明申请
    METHODS OF WRAPPING OPTICAL FIBER AROUND A FLUID CONDUIT 有权

    公开(公告)号：US20220146253A1

    公开(公告)日：2022-05-12

    申请号：US17429220

    申请日：2020-02-05

    Applicant: Hifi Engineering Inc.

    Inventor： Arne Dankers ,  Seyed Ehsan Jalilian

    IPC: G01B11/16 ,  E21B47/01

    Abstract: A method of wrapping optical fiber around a fluid conduit. The optical fiber is wrapped at least partially around the conduit. The optical fiber is secured relative to the conduit at one or more securing locations, thereby defining a sequence of multiple optical fiber portions. Each optical fiber portion comprises a portion of the optical fiber. Each securing location delimits a given optical fiber portion from the subsequent optical fiber portion in the sequence of optical fiber portions. A direction of wrapping of each consecutive optical fiber portion in the sequence of optical fiber portions may be alternated between a clockwise direction and a counter-clockwise direction.

    Method and system for detecting events in a conduit
    9.
    发明授权
    Method and system for detecting events in a conduit 有权

    公开(公告)号：US11754462B2

    公开(公告)日：2023-09-12

    申请号：US17299302

    申请日：2019-12-02

    Applicant: Hifi Engineering Inc.

    Inventor： Arne Dankers ,  Seyed Ehsan Jalilian

    IPC: G01M3/38 ,  E21B47/117

    CPC classification number: G01M3/38 ,  E21B47/117

    Abstract: There are described methods, systems, and computer-readable media for detecting events in a conduit. Multiple lengths of optical fiber positioned alongside a conduit are used to detect a signal. For each length of optical fiber, interferometric data is obtained from the detected signal. The interferometric data obtained for one length of optical fiber is compared to the interferometric data obtained for one or more other lengths of optical fiber. Based on the comparison, it is determined whether the signal originated from the conduit.

    OPTICAL FIBER ASSEMBLY
    10.
    发明申请
    OPTICAL FIBER ASSEMBLY 有权

    公开(公告)号：US20210239516A1

    公开(公告)日：2021-08-05

    申请号：US17053041

    申请日：2019-05-07

    Applicant: Hifi Engineering Inc.

    Inventor： Arne Dankers ,  Seyed Ehsan Jalilian

    IPC: G01H9/00 ,  G01L1/24 ,  G02B6/44

    Abstract: There is described an optical fiber assembly comprising an optical fiber casing and optical fiber deployed within and fixed relative to the casing at multiple fixation points spaced along the casing. The optical fiber assembly may further comprise one or more weights attached within the casing to the optical fiber, for increasing a tension of the optical fiber between the multiple fixation points. The optical fiber casing may comprise flexible portions and rigid portions, with the optical fiber fixed to the flexible portions.

Patent Agency Ranking