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 (enExample) 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 (enExample)
EP (1) EP1451556A1 (enExample)
JP (1) JP2005512047A (enExample)
WO (1) WO2003048746A1 (enExample)

Families Citing this family (30)

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Publication number Priority date Publication date Assignee Title
GB0322859D0 (en) * 2003-09-30 2003-10-29 British Telecomm Communication
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
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
GB0421747D0 (en) * 2004-09-30 2004-11-03 British Telecomm Distributed backscattering
EP1794904A1 (en) * 2004-09-30 2007-06-13 British Telecommunications Public Limited Company Identifying or locating waveguides
GB0427733D0 (en) * 2004-12-17 2005-01-19 British Telecomm Optical system
KR20070095909A (ko) 2004-12-17 2007-10-01 브리티쉬 텔리커뮤니케이션즈 파블릭 리미티드 캄퍼니 네트워크 평가 방법
WO2006092606A1 (en) * 2005-03-04 2006-09-08 British Telecommunications Public Limited Company Acousto-optical modulator arrangement
GB0504579D0 (en) * 2005-03-04 2005-04-13 British Telecomm Communications system
EP1708388A1 (en) 2005-03-31 2006-10-04 British Telecommunications Public Limited Company Communicating information
WO2006109693A1 (ja) * 2005-04-08 2006-10-19 Eisai R & D Management Co., Ltd. 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
DE602007013874D1 (de) * 2006-02-24 2011-05-26 British Telecomm Erfassen einer störung
US7961331B2 (en) * 2006-02-24 2011-06-14 British Telecommunications Public Limited Company Sensing a disturbance along an optical path
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
EP2598910A4 (en) * 2010-07-29 2014-06-25 Waikatolink Ltd DEVICE AND METHOD FOR MEASURING THE SPACING AND / OR THE INTENSITY CHARACTERISTICS OF OBJECTS
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
DE9006490U1 (de) 1990-06-08 1990-10-25 Casdorff, Rainer, Dr., 2000 Hamburg Anordnung zur Ermittlung der tatsächlichen optischen Weglänge 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
GB9324333D0 (en) 1993-11-26 1994-01-12 Sensor Dynamics Ltd Measurement of one or more physical parameters
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
US5701006A (en) 1995-11-21 1997-12-23 Simula Inc. Method and apparatus for measuring distances using fiber optics
WO1999042787A1 (en) 1998-02-23 1999-08-26 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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