JPWO2021084940A1 - - Google Patents

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Publication number
JPWO2021084940A1
JPWO2021084940A1 JP2021554156A JP2021554156A JPWO2021084940A1 JP WO2021084940 A1 JPWO2021084940 A1 JP WO2021084940A1 JP 2021554156 A JP2021554156 A JP 2021554156A JP 2021554156 A JP2021554156 A JP 2021554156A JP WO2021084940 A1 JPWO2021084940 A1 JP WO2021084940A1
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JP
Japan
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JP2021554156A
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JP7363915B2 (ja
JPWO2021084940A5 (ja
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Publication of JP7363915B2 publication Critical patent/JP7363915B2/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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
    • H04R23/008—Transducers other than those covered by groups H04R9/00 - H04R21/00 using optical signals for detecting or generating sound

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
JP2021554156A 2019-10-29 2020-09-14 音響センサ Active JP7363915B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2019196746 2019-10-29
JP2019196746 2019-10-29
PCT/JP2020/034647 WO2021084940A1 (ja) 2019-10-29 2020-09-14 音響センサ

Publications (3)

Publication Number Publication Date
JPWO2021084940A1 true JPWO2021084940A1 (ja) 2021-05-06
JPWO2021084940A5 JPWO2021084940A5 (ja) 2022-06-24
JP7363915B2 JP7363915B2 (ja) 2023-10-18

Family

ID=75714499

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2021554156A Active JP7363915B2 (ja) 2019-10-29 2020-09-14 音響センサ

Country Status (3)

Country Link
US (1) US20220397451A1 (ja)
JP (1) JP7363915B2 (ja)
WO (1) WO2021084940A1 (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114422025B (zh) * 2022-01-24 2024-02-27 南京邮电大学 一种基于声波传输的光缆路由寻找方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02103422A (ja) * 1988-10-12 1990-04-16 Fujikura Ltd 光ファイバ音響センサ
JP2001041817A (ja) * 1999-07-28 2001-02-16 Fujikura Ltd 光ファイバ干渉型センサおよび光ファイバ干渉型信号検出方法
WO2005095909A1 (ja) * 2004-03-30 2005-10-13 Toudai Tlo, Ltd. 振動計測装置
US20120280117A1 (en) * 2011-04-08 2012-11-08 Qinetiq Limited Fibre Optic Distributed Sensing
US20160131520A1 (en) * 2013-06-13 2016-05-12 Schlumberger Technology Corporation Fiber Optic Distributed Vibration Sensing With Directional Sensitivity
CN109186743A (zh) * 2018-11-09 2019-01-11 中国石油大学(华东) 一种相位敏感光时域反射计分布式光纤三分量声敏感系统

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5948663A (ja) * 1982-09-13 1984-03-19 Sumitomo Electric Ind Ltd アレイ状光学式ハイドロフオンシステム
JPS61214699A (ja) * 1985-03-19 1986-09-24 Mitsubishi Heavy Ind Ltd 音声入力器
US7463555B2 (en) * 2006-05-04 2008-12-09 Northrop Grumman Corporation Tri axis high frequency fiber optic acoustic sensor
GB2519001B (en) * 2009-05-27 2015-09-02 Silixa Ltd Method and apparatus for optical sensing
US9234790B2 (en) * 2012-03-19 2016-01-12 The Board Of Trustees Of The Leland Stanford Junior University Apparatus and methods utilizing optical sensors operating in the reflection mode
GB2529674B (en) * 2014-08-28 2019-07-10 Silixa Ltd Flexible Substrate Fiber Optic Sensing Mat For Distributed Acoustic Sensing
CN105547453B (zh) * 2015-11-30 2018-09-18 威海北洋电气集团股份有限公司 一种时分复用光纤水听器阵列的光路结构
EP3959491A1 (en) * 2019-04-22 2022-03-02 King Abdullah University of Science and Technology Signal processing algorithm for detecting red palm weevils using optical fiber

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02103422A (ja) * 1988-10-12 1990-04-16 Fujikura Ltd 光ファイバ音響センサ
JP2001041817A (ja) * 1999-07-28 2001-02-16 Fujikura Ltd 光ファイバ干渉型センサおよび光ファイバ干渉型信号検出方法
WO2005095909A1 (ja) * 2004-03-30 2005-10-13 Toudai Tlo, Ltd. 振動計測装置
US20120280117A1 (en) * 2011-04-08 2012-11-08 Qinetiq Limited Fibre Optic Distributed Sensing
US20160131520A1 (en) * 2013-06-13 2016-05-12 Schlumberger Technology Corporation Fiber Optic Distributed Vibration Sensing With Directional Sensitivity
CN109186743A (zh) * 2018-11-09 2019-01-11 中国石油大学(华东) 一种相位敏感光时域反射计分布式光纤三分量声敏感系统

Also Published As

Publication number Publication date
WO2021084940A1 (ja) 2021-05-06
JP7363915B2 (ja) 2023-10-18
US20220397451A1 (en) 2022-12-15

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