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61.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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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：US12253204B2
公开(公告)日：2025-03-18
申请号：US18054496
申请日：2022-11-10
Applicant: HIFI ENGINEERING INC.
Inventor： Seyed Ehsan Jalilian , Mehri Owjimehr
Abstract: An object moving along a conduit having multiple channels is tracked. Each channel defines a portion of a length of the conduit. For each channel, acoustic data, generated from one or more acoustic signals detected at the channel in response to movement of the object along the conduit, is generated. For at least one channel, the acoustic data obtained for the at least one channel is cross-correlated with the acoustic data obtained for at least one other one of the channels. Based on the cross-correlating, a position of the object within the conduit is determined.
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公开(公告)号：US20240184006A1
公开(公告)日：2024-06-06
申请号：US18065192
申请日：2022-12-13
Applicant: Hifi Engineering Inc.
Inventor： Seyed Ehsan JALILIAN , Yuhong LIU
Abstract: Methods, systems, and techniques for wind detection. A first acoustic signal generated by an acoustic sensor positioned to be actuated in response to wind is measured. An average value of the first acoustic signal over a sampling duration is determined. The average value may be a median, and the sampling duration may be at least 15 minutes. If the average value of the first acoustic signal satisfies a wind detection threshold, the first acoustic signal is determined to be generated by the wind.
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Patent Agency Ranking
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：US11946732B2
公开(公告)日：2024-04-02
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 , B65H59/40 , E21B47/113 , F17D5/06
CPC classification number: G01B11/165 , E21B47/01 , B65H59/40 , B65H2701/32 , E21B47/114 , F17D5/06
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.
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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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公开(公告)号：US20230102764A1
公开(公告)日：2023-03-30
申请号：US18057644
申请日：2022-11-21
Applicant: HIFI ENGINEERING INC.
Inventor： Seyed Ehsan JALILIAN , Mehri OWJIMEHR , Arne DANKERS , Yuhong LIU
IPC: F16L55/48
Abstract: There is described a method of determining a position of a pipeline inspection gauge (PIG) in a fluid conduit. While the PIG is moving through the fluid conduit, one or more sensors positioned along the fluid conduit are used to detect one or more signals. Parameter data is extracted from the detected one or more signals. The parameter data includes one or more parameters of the detected one or more signals as a function of time and position along the fluid conduit. PIG movement data indicative of a position of the PIG in the fluid conduit as a function of time is generated using the parameter data.
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