JP2005512047A5 - - Google Patents

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Publication number
JP2005512047A5
JP2005512047A5 JP2003549892A JP2003549892A JP2005512047A5 JP 2005512047 A5 JP2005512047 A5 JP 2005512047A5 JP 2003549892 A JP2003549892 A JP 2003549892A JP 2003549892 A JP2003549892 A JP 2003549892A JP 2005512047 A5 JP2005512047 A5 JP 2005512047A5
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JP
Japan
Prior art keywords
optical path
light
detector
length
signal
Prior art date
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.)
Pending
Application number
JP2003549892A
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English (en)
Japanese (ja)
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JP2005512047A (ja
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Publication date
Priority claimed from US10/004,651 external-priority patent/US6798523B2/en
Application filed filed Critical
Publication of JP2005512047A publication Critical patent/JP2005512047A/ja
Publication of JP2005512047A5 publication Critical patent/JP2005512047A5/ja
Pending legal-status Critical Current

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JP2003549892A 2001-12-04 2002-11-21 光ファイバの欠陥を検出するセンサおよび方法 Pending JP2005512047A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/004,651 US6798523B2 (en) 2001-12-04 2001-12-04 Sensor and method for detecting fiber optic faults
PCT/US2002/037471 WO2003048746A1 (en) 2001-12-04 2002-11-21 Sensor and method for detecting fiber optic faults

Publications (2)

Publication Number Publication Date
JP2005512047A JP2005512047A (ja) 2005-04-28
JP2005512047A5 true JP2005512047A5 (https=) 2006-01-05

Family

ID=21711817

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003549892A Pending JP2005512047A (ja) 2001-12-04 2002-11-21 光ファイバの欠陥を検出するセンサおよび方法

Country Status (4)

Country Link
US (1) US6798523B2 (https=)
EP (1) EP1451556A1 (https=)
JP (1) JP2005512047A (https=)
WO (1) WO2003048746A1 (https=)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
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US7667849B2 (en) * 2003-09-30 2010-02-23 British Telecommunications Public Limited Company Optical sensor with interferometer for sensing external physical disturbance of optical communications link
GB0322859D0 (en) * 2003-09-30 2003-10-29 British Telecomm Communication
FR2867620B1 (fr) * 2004-03-12 2008-10-24 Thales Sa Dispositif de decalage de frequence dans un chemin optique a source laser continue
FR2867619B1 (fr) * 2004-03-12 2006-06-23 Thales Sa Dispositif de decalage de frequence dans un chemin optique a source laser pulsee
GB0407386D0 (en) * 2004-03-31 2004-05-05 British Telecomm Monitoring a communications link
US7245800B1 (en) 2004-09-08 2007-07-17 Lockheed Martin Corporation Fiber optic interconnect with visible laser indicator and fault detector
WO2006035198A1 (en) * 2004-09-30 2006-04-06 British Telecommunications Public Limited Company Identifying or locating waveguides
GB0421747D0 (en) * 2004-09-30 2004-11-03 British Telecomm Distributed backscattering
GB0427733D0 (en) * 2004-12-17 2005-01-19 British Telecomm Optical system
JP4782798B2 (ja) 2004-12-17 2011-09-28 ブリティッシュ・テレコミュニケーションズ・パブリック・リミテッド・カンパニー ネットワークの評価
GB0504579D0 (en) * 2005-03-04 2005-04-13 British Telecomm Communications system
US7697795B2 (en) * 2005-03-04 2010-04-13 British Telecommunications Public Limited Company Acoustic modulation
EP1708388A1 (en) 2005-03-31 2006-10-04 British Telecommunications Public Limited Company Communicating information
JPWO2006109693A1 (ja) * 2005-04-08 2008-11-13 エーザイ・アール・アンド・ディー・マネジメント株式会社 粘性試料のサンプリング器具、喀痰の均質化処理方法及び微生物の検出方法
EP1713301A1 (en) * 2005-04-14 2006-10-18 BRITISH TELECOMMUNICATIONS public limited company Method and apparatus for communicating sound over an optical link
EP1729096A1 (en) * 2005-06-02 2006-12-06 BRITISH TELECOMMUNICATIONS public limited company Method and apparatus for determining the position of a disturbance in an optical fibre
EP1826924A1 (en) * 2006-02-24 2007-08-29 BRITISH TELECOMMUNICATIONS public limited company Sensing a disturbance
WO2007096579A1 (en) * 2006-02-24 2007-08-30 British Telecommunications Public Limited Company Sensing a disturbance
DE602007013874D1 (de) * 2006-02-24 2011-05-26 British Telecomm Erfassen einer störung
CA2647173A1 (en) * 2006-04-03 2007-10-11 British Telecommunications Public Company Limited Evaluating the position of a disturbance
US8330134B2 (en) 2009-09-14 2012-12-11 Microsoft Corporation Optical fault monitoring
CN103261912B (zh) * 2010-07-29 2016-01-20 威凯托陵科有限公司 用于测量对象的距离和/或强度特性的设备和方法
US9069061B1 (en) 2011-07-19 2015-06-30 Ball Aerospace & Technologies Corp. LIDAR with analog memory
US9964464B2 (en) * 2012-04-11 2018-05-08 Ultra Communications, Inc. Optical time domain reflectometer with high resolution and high sensitivity
CN103954369B (zh) * 2014-04-23 2017-08-25 武汉虹拓新技术有限责任公司 一种电控相移方法
EP3029488B1 (de) * 2014-12-04 2019-02-27 Hexagon Technology Center GmbH Distanzmessgerät mit einer Laser-artigen Lichtquelle
CN109357689B (zh) * 2018-11-21 2022-06-07 中国船舶重工集团公司第七0七研究所 一种三轴光纤陀螺仪标度因数正交建模补偿方法
US10928435B2 (en) * 2019-07-15 2021-02-23 The Boeing Company Electrical fault detector and method of use
US11346214B2 (en) 2019-09-13 2022-05-31 Baker Hughes Oilfield Operations Llc Monitoring of downhole components during deployment
CN116592947A (zh) * 2023-06-06 2023-08-15 上海思源弘瑞自动化有限公司 全光纤电流互感器本征频率及光纤长度测量的方法和装置

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US4572949A (en) * 1982-04-14 1986-02-25 The Board Of Trustees Of The Leland Stanford Junior University Fiber optic sensor for detecting very small displacements of a surface
GB2152657A (en) 1984-01-05 1985-08-07 Plessey Co Plc Interferometers
US5218419A (en) 1990-03-19 1993-06-08 Eli Lilly And Company Fiberoptic interferometric sensor
DE4018379A1 (de) 1990-06-08 1991-12-12 Rainer Dr Casdorff Verfahren und anordnung zur ermittlung der tatsaechlichen optischen weglaenge von licht in einem lichtleiter
US5239366A (en) 1992-02-12 1993-08-24 Huges Aircraft Company Compact laser probe for profilometry
EP0556960A3 (en) 1992-02-20 1995-02-01 Optical Metrology Ltd Measurement apparatus using heterodyne phase conversion techniques
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JP3990450B2 (ja) * 1995-06-07 2007-10-10 ハネウエル・インコーポレーテッド 光ファイバ感知コイル用の固有周波数トラッカ
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EP1058813B1 (en) 1998-02-23 2012-10-10 Zygo Corporation Interferometer and method for measuring the refractive index and optical path length effects of air
US6175410B1 (en) * 1998-12-17 2001-01-16 Honeywell Inc. Fiber optic gyroscope having modulated suppression of co-propagating and counter-propagating polarization errors
US6211963B1 (en) * 1998-12-29 2001-04-03 Honeywell Inc. Low drift depolarizer for fiber optic gyroscope having legs wound in a winding pattern

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