JPWO2022054254A1 - - Google Patents

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Publication number
JPWO2022054254A1
JPWO2022054254A1 JP2022547341A JP2022547341A JPWO2022054254A1 JP WO2022054254 A1 JPWO2022054254 A1 JP WO2022054254A1 JP 2022547341 A JP2022547341 A JP 2022547341A JP 2022547341 A JP2022547341 A JP 2022547341A JP WO2022054254 A1 JPWO2022054254 A1 JP WO2022054254A1
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JP
Japan
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JP2022547341A
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JP7405270B2 (ja
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Classifications

    • 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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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
JP2022547341A 2020-09-11 2020-09-11 振動検出装置及び振動検出方法 Active JP7405270B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2020/034577 WO2022054254A1 (ja) 2020-09-11 2020-09-11 振動検出装置及び振動検出方法

Publications (2)

Publication Number Publication Date
JPWO2022054254A1 true JPWO2022054254A1 (ja) 2022-03-17
JP7405270B2 JP7405270B2 (ja) 2023-12-26

Family

ID=80631440

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2022547341A Active JP7405270B2 (ja) 2020-09-11 2020-09-11 振動検出装置及び振動検出方法

Country Status (5)

Country Link
US (1) US20230358599A1 (ja)
EP (1) EP4212834A4 (ja)
JP (1) JP7405270B2 (ja)
CN (1) CN115956192A (ja)
WO (1) WO2022054254A1 (ja)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020003464A (ja) * 2018-07-02 2020-01-09 日本電信電話株式会社 分布光ファイバ振動計測装置および分布光ファイバ振動計測方法
JP2020508467A (ja) * 2017-01-20 2020-03-19 フォーカス センサーズ リミテッド． 分散型音響センシング
JP2020126003A (ja) * 2019-02-05 2020-08-20 日本電信電話株式会社 振動検出方法、信号処理装置及びプログラム

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020508467A (ja) * 2017-01-20 2020-03-19 フォーカス センサーズ リミテッド． 分散型音響センシング
JP2020003464A (ja) * 2018-07-02 2020-01-09 日本電信電話株式会社 分布光ファイバ振動計測装置および分布光ファイバ振動計測方法
JP2020126003A (ja) * 2019-02-05 2020-08-20 日本電信電話株式会社 振動検出方法、信号処理装置及びプログラム

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
IIDA DAISUKE ET AL.: "High-frequency distributed acoustic sensing faster than repetition limit with frequency-multiplexed", 2016 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXHIBITION, JPN6021001178, ISSN: 0005196821 *
WANG ZHAOYONG ET AL.: "Ultra-broadband phase sensitive optical time-domain reflectometry with a temporally sequenced multi-", OPTICS LETTERS, vol. 40, no. 22, JPN6021001176, 15 November 2015 (2015-11-15), pages 5192 - 5195, ISSN: 0005196820 *
ZHOU LING ET AL.: "Distributed Strain and Vibration Sensing System Based on Phase-Sensitive OTDR", IEEE PHOTONICS TECHNOLOGY LETTERS, vol. 27, no. 17, JPN6021001173, 1 September 2015 (2015-09-01), pages 1884 - 1887, XP011665174, ISSN: 0005196819, DOI: 10.1109/LPT.2015.2444419 *

Also Published As

Publication number Publication date
EP4212834A1 (en) 2023-07-19
CN115956192A (zh) 2023-04-11
WO2022054254A1 (ja) 2022-03-17
JP7405270B2 (ja) 2023-12-26
US20230358599A1 (en) 2023-11-09
EP4212834A4 (en) 2024-05-01

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