公开(公告)号：US12072244B2

公开(公告)日：2024-08-27

申请号：US17321464

申请日：2021-05-16

申请人： NEC Laboratories America, Inc.

发明人： Jian Fang ,  Ting Wang

IPC分类号： G01K11/32 ,  G01D5/353 ,  G01K11/322 ,  G01K11/324

CPC分类号： G01K11/322 ,  G01D5/35383 ,  G01K11/324

摘要： Aspects of the present disclosure describe systems, methods, and structures for distributed temperature sensing that employ joint wavelet denoising to achieve desirable signal-to-noise ratio(s) over extended sensor fiber distances.

公开(公告)号：US20240266090A1

公开(公告)日：2024-08-08

申请号：US18430486

申请日：2024-02-01

申请人： PRYSMIAN S.p.A.

发明人： Josep Maria MARTIN REGALADO ,  Matias CAMPILLO SANCHEZ ,  Ester CASTILLO LOPEZ ,  Carles FANDOS FERRES

IPC分类号： H01B9/00 ,  G01K11/32 ,  G01L1/24

CPC分类号： H01B9/005 ,  G01K11/32 ,  G01L1/242 ,  H01B9/008

摘要： It is disclosed a cable for an overhead power transmission line, the cable comprising: a first optical unit comprising a first metal tube housing at least one an optical fiber suitable for sensing strain, the at least one optical fiber in the first metal tube being a tight buffered optical fiber fixed to an inner surface of the first metal tube; a second optical unit comprising a second metal tube comprising one or more loose optical fibers suitable for sensing temperature; and an armor comprising one or more layers of metal wires. The first optical unit is surrounded by at least one layer of semi-conductive or conductive material electrically contacting the outer surface of the first metal tube.

公开(公告)号：US12057298B2

公开(公告)日：2024-08-06

申请号：US17684903

申请日：2022-03-02

申请人： Applied Materials, Inc.

发明人： Marcus Blake Freitas ,  David Masayuki Ishikawa ,  Vijay D. Parkhe ,  Visweswaren Sivaramakrishnan

IPC分类号： H01J37/32 ,  G01K1/14 ,  G01K11/32

CPC分类号： H01J37/32724 ,  G01K1/14 ,  G01K11/32

摘要： Apparatus and systems for temperature probe integration on pedestal heaters of a processing chamber including a cooling assembly for cooling temperature probes disposed within. Cooling assemblies can be actively water-cooled, passively cooled by fin stacks. Further cooling assemblies include a mechanical arm assembly for lowering or raising the temperature probes.

公开(公告)号：US12044581B2

公开(公告)日：2024-07-23

申请号：US17833030

申请日：2022-06-06

申请人： Watlow Electric Manufacturing Company

发明人： John Bergen

IPC分类号： G01K11/32 ,  G01K1/143 ,  G01K1/20

CPC分类号： G01K11/32 ,  G01K1/143 ,  G01K1/20

摘要： Temperature sensing probes for sensing the temperature of a substrate based on fluorescence are disclosed. The temperature sensing probes include a fiber optic cable having at a cold end an optical interface and at a hot end a temperature sensing element for contacting a substrate. A sheath surrounds at least a portion of the hot end of the fiber optic cable. A retaining member securely and removably engages the sheath with a support member. The sheath forms a vacuum seal around the contact between the temperature sensing element and the substrate.

公开(公告)号：US20240230562A9

公开(公告)日：2024-07-11

申请号：US18278018

申请日：2022-03-14

申请人： Koch-Glitsch, LP

发明人： Izak Nieuwoudt ,  Anand Vennavelli

IPC分类号： G01N25/08 ,  G01K11/32

CPC分类号： G01N25/085 ,  G01K11/32

摘要： A system for determining a property of a fluid includes a sensing cable including an optical fiber sensor array located within the sensing cable; a heating element aligned with the optical fiber sensor array; and a nucleating surface, surrounding the sensing cable, to induce boiling of the fluid exposed to the nucleating surface when heated by the heating element. A system for determining a property of a fluid includes a sensing cable including an optical fiber sensor array located within the sensing cable; and a heating element, aligned with the optical fiber sensor array, to continuously heat the fluid exposed to the sensing cable. A system for determining a property of a fluid includes a sensing cable including an optical fiber sensor array; and a heating element, aligned with the optical fiber sensor array, to heat the fluid exposed to the sensing cable to induce nucleate boiling of the fluid.

公开(公告)号：US20240175726A1

公开(公告)日：2024-05-30

申请号：US18283498

申请日：2021-03-25

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Tatsuya OKAMOTO ,  Daisuke IIDA ,  Yusuke KOSHIKIYA ,  Nazuki HONDA

IPC分类号： G01D5/353 ,  G01K11/32 ,  G01L1/24

CPC分类号： G01D5/35358 ,  G01K11/32 ,  G01L1/242

摘要： The present disclosure generates an optical spectrogram, representing a temporal change in frequency characteristics, using a plurality of spectral data measured by an OFDR measurement instrument at different times, and filters the optical spectrogram in both a time direction and a frequency direction.

公开(公告)号：US20240142421A1

公开(公告)日：2024-05-02

申请号：US17974425

申请日：2022-10-26

申请人： CCTEG Shenyang Research Institute

发明人： Depeng Zhang ,  Yuntao Liang ,  Yong Sun ,  Junjie Zhang ,  Ruide Wang ,  Xinfeng Cui ,  Baolong Guo

IPC分类号： G01N33/00 ,  B65H75/44 ,  G01K11/32

CPC分类号： G01N33/0027 ,  B65H75/4484 ,  G01K11/32 ,  E21F17/18

摘要： The present disclosure includes a method of testing for gas and temperature distribution in a goaf, wherein the test device comprises a cable coupled to a cable dragging machine, the cable including a test end configured to be buried in the goaf; a gas temperature tester configured to test a gas for composition and temperature; and a gas pump configured to continuously pump gas from the test end and transmit it to the gas temperature tester. In some examples, the method comprises placing the test end of the cable in the goaf. According to some examples, the method comprises starting the cable dragging machine and starting the gas pump simultaneously with starting the cable dragging machine. The method may comprise withdrawing the cable, via the cable dragging machine, at a constant speed and analyzing, via the gas temperature tester, the composition and temperature of the gas.

公开(公告)号：US11958255B2

公开(公告)日：2024-04-16

申请号：US16367541

申请日：2019-03-28

申请人： UNIVERSITY OF SOUTH CAROLINA

发明人： Victor Giurgiutiu ,  Michael Van Tooren ,  Bin Lin ,  Lingyu Yu ,  Mohammad Faisal Haider

IPC分类号： B29C65/00 ,  B29C65/36 ,  B29K307/04 ,  G01K11/32

CPC分类号： B29C66/91221 ,  B29C65/3636 ,  B29C65/3696 ,  B29C66/7212 ,  B29C66/73921 ,  B29C66/91211 ,  G01K11/32 ,  B29K2307/04

摘要： An in-situ fiber-optic temperature field measurement is disclosed that can allow process monitoring and diagnosis for thermoplastic composite welding and other applications. A distributed fiber-optic sensor can be permanently embedded in a thermoplastic welded structure when it is welded and left there to perform lifelong monitoring and inspection. The fiber optic sensor can include a dissolvable coating, or a coating matched to the composite material to be welded. Other applications include in-situ fiber-optic temperature field measurement on thermoset composite curing (autoclave), for thermoplastic and thermoset composites during compression molding, and for fiber-optic field measurements on freeze/thaw of large items of public health interest, such as stored or transported foodstuffs.

公开(公告)号：US20240085267A1

公开(公告)日：2024-03-14

申请号：US18388307

申请日：2023-11-09

申请人： Adtran Networks SE

发明人： Benjamin Wohlfeil ,  Gilda Raoof Mehrpoor

IPC分类号： G01M11/02 ,  G01J9/02 ,  G01K11/32 ,  G01M11/00 ,  H01S5/0683 ,  H01S5/0687

CPC分类号： G01M11/0207 ,  G01J9/0246 ,  G01K11/32 ,  G01M11/0228 ,  G01M11/33 ,  H01S5/0683 ,  H01S5/06837 ,  H01S5/0687

摘要： An optical detection device and method for detecting temperature changes and/or wavelength changes of an optical probe signal includes transmitting an optical probe signal having a predetermined wavelength to an optical input port of an optical waveguide; detecting first and second optical detection signal at first and second optical output ports via first and second opto-electrical converters which create corresponding first and second electrical signals; measuring values of the first and second electrical signal and determining an absolute temperature or a temperature change of the optical waveguide and/or an absolute wavelength value or a wavelength change of the optical probe signal via values measured of the first and second electrical signals and first and second previously determined wavelengths and temperature dependencies of both first and second power transfer functions,

公开(公告)号：US11920986B2

公开(公告)日：2024-03-05

申请号：US18273554

申请日：2021-08-10

申请人： TONGJI UNIVERSITY

发明人： Hailong Yin ,  Zuxin Xu ,  Longtian Guo ,  Ming Xie

IPC分类号： G01K11/32 ,  F16L55/28 ,  F16L101/30

CPC分类号： G01K11/32 ,  F16L55/28 ,  F16L2101/30

摘要： A sewer pipe inflow and infiltration diagnosis method based on a distributed fiber-optic temperature measurement system is provided. The inflow and infiltration diagnosis method includes the following steps: S1: transmitting, by an optical time-domain reflectometer, an original optical signal to a temperature sensing fiber-optic cable provided in a sewer pipe; S2: feeding back, by the temperature sensing fiber-optic cable, a modulated optical signal to the optical time-domain reflectometer due to a temperature effect; S3: subjecting the modulated optical signal to photoelectric conversion, so as to acquire binary information; S4: converting the binary information into decimal information; S5: drawing a spatiotemporal map of a water temperature; and S6: eliminating a background noise value, identifying an abnormal water temperature point, determining an inflow and infiltration point of the sewer pipe, and determining an abnormal inflow and infiltration point of the sewer pipe.