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公开(公告)号：US20190339145A1
公开(公告)日：2019-11-07
申请号：US16271623
申请日：2019-02-08
Applicant: Hifi Engineering Inc.
Inventor： John Hull , Seyed Ehsan Jalilian
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：US10428644B2
公开(公告)日：2019-10-01
申请号：US15105386
申请日：2014-12-15
Applicant: Hifi Engineering Inc.
Inventor： John Hull , Neil Gulewicz , Seyed Ehsan Jalilian
Abstract: A sound baffle device for use with an acoustic sensor deployed in a housing by a deployment line comprises a radially extending baffle plate and an affixing mechanism for affixing the baffle plate to the deployment line. The baffle plate is configured to reduce acoustic transmission between a first zone of the housing on one side of the baffle plate and a second zone of the housing on an opposite side of the baffle plate.
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公开(公告)号：US10422365B2
公开(公告)日：2019-09-24
申请号：US15739336
申请日：2016-06-27
Applicant: Hifi Engineering Inc.
Inventor： John Hull , Seyed Ehsan Jalilian , Derek Logan
IPC: F16B2/24 , F16B2/06 , F17D5/00 , G01B9/02 , G02B6/46 , G01B11/16 , G02B6/00 , F16L3/06 , F17D5/06
Abstract: A clamp for clamping optical fiber to a tube. The clamp has a body portion coupled at one end to a first arm and at an opposing end to a second arm, and a resilient portion to permit the clamp to elastically deform from a closed state in which the clamp is fastened around the tube to an open state in which the clamp is radially moveable off the tube. At least one of the body portion, the first arm and the second arm has a clamping surface to clamp a portion of the optical fiber against the tube when the clamp is fastened around the tube, and a clamping mechanism operable to extend at least part of the clamping surface towards the tube when the clamp is secured to the tube to increase a clamping force applied by the clamping surface.
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24.发明申请公开(公告)号：US20190072379A1
公开(公告)日：2019-03-07
申请号：US16081850
申请日：2016-03-01
Applicant: Hifi Engineering Inc.
Inventor： Seyed Ehsan Jalilian , John Hull , Daniel Huang , Adekunle Adeyemi
IPC: G01B11/16 , G01B21/32 , G01L1/24 , G01D5/353 , G01K11/32 , G01M3/00 , G01M3/24 , G01M3/38 , G01H9/00
Abstract: Methods, systems, and techniques for determining whether an event has occurred from dynamic strain measurements involve determining, using a processor, at least one event parameter from a signal representing the dynamic strain measurements, and then having the processor use the at least one event parameter to determine whether the event has occurred. The at least one event parameter is any one or more of a measure of magnitude of the signal, frequency centroid of the signal, filtered baseline of the signal, harmonic power of the signal, and time-integrated spectrum flux of the signal.
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公开(公告)号：US20190003499A1
公开(公告)日：2019-01-03
申请号：US16063659
申请日：2016-12-16
Applicant: Hifi Engineering Inc.
Inventor： Derek Logan , John Hull , Seyed Ehsan Jalilian
IPC: F16B2/06 , F17D3/01 , G01B11/16 , G01H9/00 , G01L1/24 , G01M11/08 , G01M3/38 , G01M5/00 , G01N29/24
Abstract: A method for non-intrusive pipeline testing involves constructing the pipeline at a construction location that is above ground, affixing an optical fiber along a surface of a length of the pipeline that is at the construction location, measuring dynamic strain experienced by the length of the pipeline by performing optical interferometry using the optical fiber, and moving the length of the pipeline from the construction location to a different installation location. The optical fiber includes 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.
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Patent Agency Ranking
公开(公告)号：US20170153155A1
公开(公告)日：2017-06-01
申请号：US15323937
申请日：2014-07-04
Applicant: Hifi Engineering Inc.
Inventor： John Hull , Seyed Ehsan Jalilian
CPC classification number: G01L1/246 , E21B47/0006 , E21B47/123 , F17C13/02 , F17D5/00 , G02B6/02 , G02B6/0208 , G02B6/02395
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：US11953385B2
公开(公告)日：2024-04-09
申请号：US17299304
申请日：2019-12-02
Applicant: Hifi Engineering Inc.
Inventor： John Hull , Seyed Ehsan Jalilian
CPC classification number: G01K15/007 , G01B11/16 , G01D5/35309 , G01D18/00 , G01K11/32
Abstract: An apparatus includes an enclosure having one or more apertures for receiving therethrough optical fiber, and one or more actuators sealed within the enclosure for generating one or more interference signals for interfering with optical fiber within the enclosure such that an optical path length of the optical fiber is altered. A method for verifying an event detection system includes interrogating optical fiber positioned alongside a conduit by sending one or more light pulses along the optical fiber and receiving reflections of the one or more light pulses. The method further includes using an event verification device housed within an enclosure through which passes the optical fiber to generate one or more interference signals for interfering with the optical fiber such that an optical path length of the optical fiber is altered.
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公开(公告)号：US20240003765A1
公开(公告)日：2024-01-04
申请号：US18188967
申请日：2023-03-23
Applicant: Hifi Engineering Inc.
Inventor： John Hull , Seyed Ehsan Jalilian
IPC: G01L1/24 , F17C13/02 , F17D5/00 , E21B47/007 , E21B47/135 , G02B6/02
CPC classification number: G01L1/246 , F17C13/02 , F17D5/00 , E21B47/007 , E21B47/135 , G02B6/02 , G02B6/0208 , G02B6/02395
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：US11630008B2
公开(公告)日：2023-04-18
申请号：US17243142
申请日：2021-04-28
Applicant: Hifi Engineering Inc.
Inventor： John Hull , Seyed Ehsan Jalilian
IPC: G01B9/02 , G01L1/24 , F17C13/02 , F17D5/00 , E21B47/007 , E21B47/135 , 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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30.发明授权公开(公告)号：US11441740B2
公开(公告)日：2022-09-13
申请号：US16921093
申请日：2020-07-06
Applicant: Hifi Engineering Inc.
Inventor： John Hull , Seyed Ehsan Jalilian , Oleksiy Pletnyov
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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