JP2023511259A - ポイントセンサを用いた分散型光ファイバセンシング - Google Patents
ポイントセンサを用いた分散型光ファイバセンシング Download PDFInfo
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- JP2023511259A JP2023511259A JP2022541940A JP2022541940A JP2023511259A JP 2023511259 A JP2023511259 A JP 2023511259A JP 2022541940 A JP2022541940 A JP 2022541940A JP 2022541940 A JP2022541940 A JP 2022541940A JP 2023511259 A JP2023511259 A JP 2023511259A
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- 239000013307 optical fiber Substances 0.000 title claims description 12
- 239000000835 fiber Substances 0.000 claims abstract description 30
- 238000004891 communication Methods 0.000 claims abstract description 5
- 230000003287 optical effect Effects 0.000 claims description 7
- 230000007613 environmental effect Effects 0.000 claims description 3
- 230000005684 electric field Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 13
- 230000001953 sensory effect Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 7
- 238000012545 processing Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 238000013459 approach Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
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- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000001427 coherent effect Effects 0.000 description 2
- 238000013480 data collection Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005562 fading Methods 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
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- 238000001069 Raman spectroscopy Methods 0.000 description 1
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- 229910002056 binary alloy Inorganic materials 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
- G01H9/004—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means using fibre optic sensors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
- G01D5/35338—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using other arrangements than interferometer arrangements
- G01D5/35354—Sensor working in reflection
- G01D5/35358—Sensor working in reflection using backscattering to detect the measured quantity
- G01D5/35361—Sensor working in reflection using backscattering to detect the measured quantity using elastic backscattering to detect the measured quantity, e.g. using Rayleigh backscattering
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
- G01L1/242—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre
- G01L1/243—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre using means for applying force perpendicular to the fibre axis
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/22—Transmitting seismic signals to recording or processing apparatus
- G01V1/226—Optoseismic systems
Abstract
Description
本開示のより完全な理解は、添付の図面を参照することによって実現され得る。
Claims (15)
- 分散型光ファイバセンシング(DOFS)システムであって、
ある長さの光ファイバケーブルと、
前記光ファイバケーブルと光通信するDOFSインタロゲータシステムと、
前記ある長さの光ファイバケーブルと機械的に通信する1つ以上のポイントセンサシステムと、
を含有する、DOFSシステム。 - 前記1つ以上のポイントセンサシステムは、センサ、音響変調器、および音響振動発生器を含む、請求項1に記載のDOFSシステム。
- 前記センサは、温度センサ、振動センサ、および歪みセンサからなる群から選択された1つである、請求項2に記載のDOFSシステム。
- 前記音響変調器は、前記センサによって感知された環境状態を表すデジタルデータを音響変調信号に変換する、請求項2に記載のDOFSシステム。
- 前記音響振動発生器は、前記音響変調信号を前記光ファイバに供給される機械的振動に変換する、請求項2に記載のDOFSシステム。
- 音響変調信号が周波数変調信号である、請求項5に記載のDOFSシステム。
- 各周波数ビットが窓掛けされる、請求項10に記載のDOFSシステム。
- 前記周波数変調信号は、フレーム内にカプセル化された情報を含み、各フレームはプリアンブルを有し、前記プリアンブルは、一定の周波数で符号化される、請求項6に記載のDOFSシステム。
- 前記プリアンブルは、機械的振動を表さない静粛期間を示すデータを含む、請求項12に記載のDOFSシステム。
- 前記フレームは固定長である、請求項13に記載のDOFSシステム。
- 前記フレームは、重複情報を含む、1つのフレームから別のフレームへの可変長である、請求項13に記載のDOFSシステム。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US202062960260P | 2020-01-13 | 2020-01-13 | |
US62/960,260 | 2020-01-13 | ||
US17/147,382 US11543285B2 (en) | 2020-01-13 | 2021-01-12 | Distributed optical fiber sensing using point sensors |
US17/147,382 | 2021-01-12 | ||
PCT/US2021/013184 WO2021146242A2 (en) | 2020-01-13 | 2021-01-13 | Distributed optical fiber sensing using point sensors |
Publications (2)
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JP2023511259A true JP2023511259A (ja) | 2023-03-17 |
JP7407950B2 JP7407950B2 (ja) | 2024-01-04 |
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JP2022541940A Active JP7407950B2 (ja) | 2020-01-13 | 2021-01-13 | ポイントセンサを用いた分散型光ファイバセンシング |
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US (1) | US11543285B2 (ja) |
JP (1) | JP7407950B2 (ja) |
DE (1) | DE112021000577T5 (ja) |
WO (1) | WO2021146242A2 (ja) |
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CN113824661B (zh) * | 2021-11-22 | 2022-03-15 | 高勘(广州)技术有限公司 | 一种通信系统调制与解调方法 |
CN114726442B (zh) * | 2022-06-02 | 2022-08-23 | 高勘(广州)技术有限公司 | 基于光纤传感的分布式通信方法、系统、装置及存储介质 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH112572A (ja) * | 1997-06-13 | 1999-01-06 | Hitachi Cable Ltd | 光ファイバを用いた物理量計測方法及び計測装置 |
JP2002288775A (ja) * | 2001-01-19 | 2002-10-04 | Heraeus Electro Nite Kk | ノイズ環境下での測温方法及び測温装置ならびにその応用としての状態量測定方法 |
US20120017687A1 (en) * | 2009-04-07 | 2012-01-26 | Qinetiq Limited | Remote Sensing |
JP2018511781A (ja) * | 2015-04-02 | 2018-04-26 | インテュイティブ サージカル オペレーションズ, インコーポレイテッド | 光ファイバの測定された干渉データと光ファイバの基準干渉データとの位置合せ |
US20200005036A1 (en) * | 2018-06-28 | 2020-01-02 | Nec Laboratories America, Inc | Time-space de-noising for distributed sensors |
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US10644916B1 (en) * | 2002-05-14 | 2020-05-05 | Genghiscomm Holdings, LLC | Spreading and precoding in OFDM |
WO2014201313A1 (en) * | 2013-06-13 | 2014-12-18 | Schlumberger Canada Limited | Fiber optic distributed vibration sensing with directional sensitivity |
GB2584978B (en) * | 2014-05-16 | 2021-04-07 | Silixa Ltd | Method and system for downhole object location and orientation determination |
US20150377738A1 (en) * | 2014-06-27 | 2015-12-31 | Raytheon Bbn Technologies Corp. | System and method for optically reading a sensor array |
FR3034190B1 (fr) * | 2015-03-23 | 2019-10-25 | Thales | Capteur a fibre optique distribue d'etat de contrainte |
US10202845B2 (en) * | 2015-12-14 | 2019-02-12 | Baker Hughes, A Ge Company, Llc | Communication using distributed acoustic sensing systems |
US11054303B2 (en) * | 2019-02-06 | 2021-07-06 | Nec Corporation | Uni-directional signal transmit method using distributed fiber sensing |
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2021
- 2021-01-12 US US17/147,382 patent/US11543285B2/en active Active
- 2021-01-13 WO PCT/US2021/013184 patent/WO2021146242A2/en active Application Filing
- 2021-01-13 DE DE112021000577.4T patent/DE112021000577T5/de active Granted
- 2021-01-13 JP JP2022541940A patent/JP7407950B2/ja active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH112572A (ja) * | 1997-06-13 | 1999-01-06 | Hitachi Cable Ltd | 光ファイバを用いた物理量計測方法及び計測装置 |
JP2002288775A (ja) * | 2001-01-19 | 2002-10-04 | Heraeus Electro Nite Kk | ノイズ環境下での測温方法及び測温装置ならびにその応用としての状態量測定方法 |
US20120017687A1 (en) * | 2009-04-07 | 2012-01-26 | Qinetiq Limited | Remote Sensing |
JP2018511781A (ja) * | 2015-04-02 | 2018-04-26 | インテュイティブ サージカル オペレーションズ, インコーポレイテッド | 光ファイバの測定された干渉データと光ファイバの基準干渉データとの位置合せ |
US20200005036A1 (en) * | 2018-06-28 | 2020-01-02 | Nec Laboratories America, Inc | Time-space de-noising for distributed sensors |
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WO2021146242A2 (en) | 2021-07-22 |
US11543285B2 (en) | 2023-01-03 |
WO2021146242A3 (en) | 2021-08-19 |
JP7407950B2 (ja) | 2024-01-04 |
US20210255007A1 (en) | 2021-08-19 |
DE112021000577T5 (de) | 2022-12-29 |
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