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公开(公告)号：US12196635B2
公开(公告)日：2025-01-14
申请号：US18188967
申请日：2023-03-23
Applicant: Hifi Engineering Inc.
Inventor： John Hull , Seyed Ehsan Jalilian
IPC: G01L1/24 , E21B47/007 , E21B47/135 , F17C13/02 , F17D5/00 , G02B6/02
Abstract: A system and method for detecting dynamic strain of a housing. The system includes an optical fiber linearly affixed along a surface of a length of the housing and an interrogator comprising a laser source and a photodetector. The optical fiber comprises at least one pair of fiber Bragg gratings (FBGs) tuned to reflect substantially identical wavelengths with a segment of the optical fiber extending between the FBGs. The segment of the optical fiber is linearly affixed along the surface of the housing. The interrogator is configured to perform interferometry by shining laser light along the optical fiber and detecting light reflected by the FBGs. The interrogator outputs dynamic strain measurements based on interferometry performed on the reflected light.
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公开(公告)号：US11662489B2
公开(公告)日：2023-05-30
申请号：US16607924
申请日：2018-04-25
Applicant: Hifi Engineering Inc.
Inventor： Arne Dankers , Seyed Ehsan Jalilian
CPC classification number: G01V1/18 , G01H9/004 , G01V1/20 , G01V1/40 , H05K1/0274
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.
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公开(公告)号：US20210164812A1
公开(公告)日：2021-06-03
申请号：US16961031
申请日：2019-01-08
Applicant: Hifi Engineering Inc.
Inventor： Adekunle Adeyemi , Seyed Ehsan Jalilian
IPC: G01D5/353 , G01H9/00 , G01K11/3206 , G01L1/24
Abstract: There is provided a system for determining multiple baselines for detecting events in a conduit. The system comprises an optical fiber interrogator for interrogating optical fiber; and one or more processors communicative with the optical fiber interrogator and memory having stored thereon computer program code configured, when executed by the one or more processors, to cause the one or more processors to perform a method. The method comprises, for each of multiple channels of the conduit, each channel comprising a portion of the conduit: obtaining phase data for the channel, the phase data being obtained by causing the optical fiber interrogator to interrogate optical fiber positioned alongside the conduit; and determining one or more baselines from the phase data.
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公开(公告)号：US20200249107A1
公开(公告)日：2020-08-06
申请号：US16679050
申请日：2019-11-08
Applicant: Hifi Engineering Inc.
Inventor： John Hull , Seyed Ehsan Jalilian
Abstract: A device and system for detecting dynamic strain. The device comprises a longitudinally extending carrier and an optical fiber embedded along an outer surface of a length of the carrier. The optical fiber comprises at least one pair of fiber Bragg gratings (FBGs) tuned to reflect substantially identical wavelengths. The system comprises the device and an interrogator comprising a laser source and a photodetector. The interrogator is configured to perform interferometry by shining laser light along the optical fiber and detecting light reflected by the FBGs. The interrogator outputs dynamic strain measurements based on interferometry performed on the reflected light.
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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
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.
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Patent Agency Ranking
公开(公告)号：US20200057220A1
公开(公告)日：2020-02-20
申请号：US16485917
申请日：2018-02-09
Applicant: Hifi Engineering Inc.
Inventor： John Hull , Neil Gulewicz , Robert Sokolowski , Alex Pletnyov , Souheil Merhi , Philip Cheuk , Seyed Ehsan Jalilian
IPC: G02B6/44
Abstract: There are described methods and systems for deploying optical fiber within a conduit. In one aspect, an optical fiber injector comprising a pressure vessel having a fluid inlet and a fluid outlet. The fluid outlet is engaged with an open end of the conduit. A length of optical fiber is provided within the pressure vessel. The optical fiber is then jetted into the conduit by injecting a fluid into the pressure vessel via the fluid inlet. The optical fiber injector is configured such that the fluid is directed from the fluid inlet to the fluid outlet, and urges the optical fiber to move through the conduit, thereby deploying the optical fiber within the conduit. In a further aspect, there is provided a modular assembly comprising a pipeline and a line of two or more conduits arranged end-to-end. Each pair of opposing ends of adjacent conduits is connected together by a separate splice box. The line is positioned along and adjacent to a length of the pipeline.
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公开(公告)号：US20190331513A1
公开(公告)日：2019-10-31
申请号：US16310375
申请日：2017-06-14
Applicant: Hifi Engineering Inc.
Inventor： Seyed Ehsan Jalilian , Dongliang Huang , Henry Leung , King Fai Ma
Abstract: There is provided a method of estimating flowrate in a pipeline based on acoustic behaviour of the pipe. First acoustic data is measured from the pipeline. A flowrate of the fluid in the pipeline is then estimated. The estimation is based on the first acoustic data and based on a correlation established between second acoustic data and corresponding flowrate data from an experimental pipeline. The correlation is established by a machine learning process (which may include the use of an artificial neural network, such as an autoencoder). The second acoustic data and corresponding flowrate data are used as inputs to the machine learning process.
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公开(公告)号：US10281341B2
公开(公告)日：2019-05-07
申请号：US15575981
申请日：2016-05-19
Applicant: Hifi Engineering Inc.
Inventor： John Hull , Seyed Ehsan Jalilian
Abstract: Described are methods and systems using optical fiber interferometry to sense interference causing events in a region of interest and differentiate between a strain event and a thermal event. Other methods and systems relate to the use of optical fiber interferometry for determining temperature offset in a region of interest and using the determined temperature offset for determining temperature in the region of interest.
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9.发明申请公开(公告)号：US20180320827A1
公开(公告)日：2018-11-08
申请号：US15773965
申请日：2016-11-03
Applicant: Hifi Engineering Inc.
Inventor： John Hull , Seyed Ehsan Jalilian , Oleksiy Pletnyov
CPC classification number: F17D5/02 , G01M3/2815
Abstract: Various embodiments provide a method of simulating a leak in a pipeline. The method includes: receiving a fluid stream from a fluid supply; and outputting the received fluid stream through an outlet such that the received fluid stream hits an outer surface of the pipeline at a location opposite the outlet such that a vibration is caused in the pipeline. Some other embodiments provide a corresponding system for simulating a leak in a pipeline, and a corresponding outlet for coupling a conduit to a pipeline.
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公开(公告)号：US12163815B2
公开(公告)日：2024-12-10
申请号：US16634722
申请日：2018-07-27
Applicant: HIFI ENGINEERING INC.
Inventor： Adekunle Adeyemi , Seyed Ehsan Jalilian
IPC: G01D9/00 , E21B47/117 , F17D3/01 , G01V8/24 , G01V9/00
Abstract: A computer-implemented method of providing access to interferometric system data stored in a data repository. A query that includes a data parameter identifier is received. The data repository is accessed and the interferometric system data is stored in the data repository using a data structure that has one or more data parameter arrays and one or more corresponding data group members. Each data group member includes one or more data arrays each associated with a data parameter in the corresponding data parameter array. Using the data parameter identifier, one or more target data parameters are determined from among the one or more data parameter arrays. One or more target data arrays that correspond to the one or more target data parameters are determined from among the one or more data arrays. The interferometric system data, which is in the one or more target data arrays, is extracted.
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