JPWO2021111699A1 - - Google Patents

Info

Publication number
JPWO2021111699A1
JPWO2021111699A1 JP2021562459A JP2021562459A JPWO2021111699A1 JP WO2021111699 A1 JPWO2021111699 A1 JP WO2021111699A1 JP 2021562459 A JP2021562459 A JP 2021562459A JP 2021562459 A JP2021562459 A JP 2021562459A JP WO2021111699 A1 JPWO2021111699 A1 JP WO2021111699A1
Authority
JP
Japan
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2021562459A
Other languages
Japanese (ja)
Other versions
JPWO2021111699A5 (https=
JP7424391B2 (ja
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of JPWO2021111699A1 publication Critical patent/JPWO2021111699A1/ja
Publication of JPWO2021111699A5 publication Critical patent/JPWO2021111699A5/ja
Application granted granted Critical
Publication of JP7424391B2 publication Critical patent/JP7424391B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
    • G02B6/50—Underground or underwater installation; Installation through tubing, conduits or ducts
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C15/00—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
    • G08C23/06—Non-electrical signal transmission systems, e.g. optical systems through light guides, e.g. optical fibres
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/077—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using a supervisory or additional signal
    • H04B10/0775—Performance monitoring and measurement of transmission parameters

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Optical Transform (AREA)
JP2021562459A 2019-12-04 2020-09-14 光ファイバセンシングシステム、中継装置及びセンシング方法 Active JP7424391B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2019219922 2019-12-04
JP2019219922 2019-12-04
PCT/JP2020/034644 WO2021111699A1 (ja) 2019-12-04 2020-09-14 光ファイバセンシングシステム、中継装置及びセンシング方法

Publications (3)

Publication Number Publication Date
JPWO2021111699A1 true JPWO2021111699A1 (https=) 2021-06-10
JPWO2021111699A5 JPWO2021111699A5 (https=) 2022-07-29
JP7424391B2 JP7424391B2 (ja) 2024-01-30

Family

ID=76221892

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2021562459A Active JP7424391B2 (ja) 2019-12-04 2020-09-14 光ファイバセンシングシステム、中継装置及びセンシング方法

Country Status (3)

Country Link
US (1) US20220399938A1 (https=)
JP (1) JP7424391B2 (https=)
WO (1) WO2021111699A1 (https=)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021111691A1 (ja) * 2019-12-03 2021-06-10 日本電気株式会社 光ファイバセンシングシステム、測定装置及び測定方法
EP4677776A1 (en) * 2023-03-10 2026-01-14 BAE SYSTEMS plc Apparatus and method
WO2025010267A1 (en) * 2023-07-05 2025-01-09 Subcom, Llc Monitoring in distributed acoustic sensing systems
JP2026043660A (ja) * 2024-08-29 2026-03-12 株式会社オーシーシー 遠隔励起を用いた光増幅中継システム

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6161038A (ja) * 1984-08-31 1986-03-28 Nippon Telegr & Teleph Corp <Ntt> 通信用ケ−ブル保守方式
JPH0451620A (ja) * 1990-06-19 1992-02-20 Sumitomo Electric Ind Ltd 光通信システム
JPH04285835A (ja) * 1991-03-14 1992-10-09 Fujikura Ltd 光ファイバ通信線路の特性検出方法または特性検出装置
JPH0511154A (ja) * 1991-07-05 1993-01-19 Fujikura Ltd 光フアイバケーブル
JPH0546144U (ja) * 1991-11-14 1993-06-18 日立電線株式会社 光通信システム
JPH05241030A (ja) * 1992-02-27 1993-09-21 Sumitomo Electric Ind Ltd 分布型光ファイバセンサ
JPH08256106A (ja) * 1995-03-17 1996-10-01 Fujitsu Ltd 光増幅海底伝送システムの分散補償装置
JPH09210847A (ja) * 1996-02-06 1997-08-15 Furukawa Electric Co Ltd:The 光伝送システムにおける光中継器の監視方法とそれに用いられる光中継器
US20030198425A1 (en) * 1998-12-18 2003-10-23 Future Fibre Technologies Pty Ltd Apparatus and method for monitoring a structure using a counter-propagating signal method for locating events
JP2011164074A (ja) * 2010-02-15 2011-08-25 Nippon Telegr & Teleph Corp <Ntt> 光ケーブル敷設環境測定方法、光ケーブル敷設環境測定装置及び光ケーブル敷設環境測定システム
JP2012501124A (ja) * 2008-08-29 2012-01-12 テレフオンアクチーボラゲット エル エム エリクソン（パブル） 光ネットワークにおけるファイバの監視方法
EP2819321A1 (en) * 2013-06-27 2014-12-31 Alcatel Lucent Packet optical add drop multiplexing node for an optical ring network
US20150241302A1 (en) * 2012-08-29 2015-08-27 Jean Pierre von der Weid Device for monitoring an optical fibre
US20170343389A1 (en) * 2014-12-03 2017-11-30 Silixa Ltd. Range extension for optical fiber sensing systems

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3016355B2 (ja) * 1996-02-05 2000-03-06 日本電気株式会社 通信・観測融合海底ケーブルシステム
JP2001345759A (ja) * 2000-06-02 2001-12-14 Mitsubishi Electric Corp 光中継装置
CN101995320B (zh) * 2009-08-27 2012-03-21 华为海洋网络有限公司 检测水下设备故障的方法、装置及设备
US8328431B2 (en) * 2010-02-01 2012-12-11 Tyco Electronics Subsea Communications Llc Coupling multiple conductor undersea optical cables to an undersea device with an isolated bypass conductive path across the undersea device
GB2535875A (en) * 2013-10-17 2016-08-31 Halliburton Energy Services Inc Distributed sensing in an optical fiber network
JP2015200728A (ja) * 2014-04-07 2015-11-12 富士通株式会社 光分岐器、光増幅装置及び光増幅方法
CN107925475A (zh) * 2015-08-03 2018-04-17 日本电气株式会社 光分插设备和光分插方法
JP2017194306A (ja) * 2016-04-19 2017-10-26 三菱重工業株式会社 光ファイバセンシングシステム及びライザー管
GB201610996D0 (en) * 2016-06-23 2016-08-10 Optasense Holdings Ltd Fibre optic sensing
JP7115182B2 (ja) * 2018-09-25 2022-08-09 日本電信電話株式会社 光コネクタ用フェルール、スリーブ及びフェルール部材製造方法

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6161038A (ja) * 1984-08-31 1986-03-28 Nippon Telegr & Teleph Corp <Ntt> 通信用ケ−ブル保守方式
JPH0451620A (ja) * 1990-06-19 1992-02-20 Sumitomo Electric Ind Ltd 光通信システム
JPH04285835A (ja) * 1991-03-14 1992-10-09 Fujikura Ltd 光ファイバ通信線路の特性検出方法または特性検出装置
JPH0511154A (ja) * 1991-07-05 1993-01-19 Fujikura Ltd 光フアイバケーブル
JPH0546144U (ja) * 1991-11-14 1993-06-18 日立電線株式会社 光通信システム
JPH05241030A (ja) * 1992-02-27 1993-09-21 Sumitomo Electric Ind Ltd 分布型光ファイバセンサ
JPH08256106A (ja) * 1995-03-17 1996-10-01 Fujitsu Ltd 光増幅海底伝送システムの分散補償装置
JPH09210847A (ja) * 1996-02-06 1997-08-15 Furukawa Electric Co Ltd:The 光伝送システムにおける光中継器の監視方法とそれに用いられる光中継器
US20030198425A1 (en) * 1998-12-18 2003-10-23 Future Fibre Technologies Pty Ltd Apparatus and method for monitoring a structure using a counter-propagating signal method for locating events
JP2012501124A (ja) * 2008-08-29 2012-01-12 テレフオンアクチーボラゲット エル エム エリクソン（パブル） 光ネットワークにおけるファイバの監視方法
JP2011164074A (ja) * 2010-02-15 2011-08-25 Nippon Telegr & Teleph Corp <Ntt> 光ケーブル敷設環境測定方法、光ケーブル敷設環境測定装置及び光ケーブル敷設環境測定システム
US20150241302A1 (en) * 2012-08-29 2015-08-27 Jean Pierre von der Weid Device for monitoring an optical fibre
EP2819321A1 (en) * 2013-06-27 2014-12-31 Alcatel Lucent Packet optical add drop multiplexing node for an optical ring network
US20170343389A1 (en) * 2014-12-03 2017-11-30 Silixa Ltd. Range extension for optical fiber sensing systems

Also Published As

Publication number Publication date
JP7424391B2 (ja) 2024-01-30
US20220399938A1 (en) 2022-12-15
WO2021111699A1 (ja) 2021-06-10

Similar Documents

Publication Publication Date Title
BR112019017762A2 (https=)
BR112021018450A2 (https=)
BR112021017637A2 (https=)
BR112021017892A2 (https=)
BR112021017782A2 (https=)
BR112021020185A2 (https=)
BR112021017939A2 (https=)
BR112021017738A2 (https=)
BR112021008711A2 (https=)
BR112019016141A2 (https=)
BR112021017728A2 (https=)
AU2020104490A5 (https=)
BR112021013944A2 (https=)
BR112021018452A2 (https=)
BR112021017703A2 (https=)
BR112021018102A2 (https=)
BR112019016138A2 (https=)
BR112019016142A2 (https=)
BR112021017732A2 (https=)
JPWO2021111699A1 (https=)
BR112021017234A2 (https=)
BR112021017355A2 (https=)
BR112021018168A2 (https=)
BR112021018093A2 (https=)
BR112021017173A2 (https=)

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20220516

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20220516

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20230523

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20230714

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20230912

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20231109

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20231219

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20240101

R151 Written notification of patent or utility model registration

Ref document number: 7424391

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151