DE69011344D1 - Optischer zeitbereich-reflektometer. - Google Patents

Optischer zeitbereich-reflektometer.

Info

Publication number
DE69011344D1
DE69011344D1 DE69011344T DE69011344T DE69011344D1 DE 69011344 D1 DE69011344 D1 DE 69011344D1 DE 69011344 T DE69011344 T DE 69011344T DE 69011344 T DE69011344 T DE 69011344T DE 69011344 D1 DE69011344 D1 DE 69011344D1
Authority
DE
Germany
Prior art keywords
time range
optical time
reflectometer
range reflectometer
optical
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.)
Expired - Fee Related
Application number
DE69011344T
Other languages
English (en)
Other versions
DE69011344T2 (de
Inventor
Meirion Francis Lewis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qinetiq Ltd
Original Assignee
UK Secretary of State for Defence
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 by UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Publication of DE69011344D1 publication Critical patent/DE69011344D1/de
Application granted granted Critical
Publication of DE69011344T2 publication Critical patent/DE69011344T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
    • G01M11/31—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter and a light receiver being disposed at the same side of a fibre or waveguide end-face, e.g. reflectometers
    • G01M11/3172—Reflectometers detecting the back-scattered light in the frequency-domain, e.g. OFDR, FMCW, heterodyne detection

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Optical Transform (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
DE69011344T 1989-12-28 1990-12-21 Optischer zeitbereich-reflektometer. Expired - Fee Related DE69011344T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB898929258A GB8929258D0 (en) 1989-12-28 1989-12-28 Optical time domain reflectometer
PCT/GB1990/002007 WO1991010121A1 (en) 1989-12-28 1990-12-21 Optical time domain relfectometer

Publications (2)

Publication Number Publication Date
DE69011344D1 true DE69011344D1 (de) 1994-09-08
DE69011344T2 DE69011344T2 (de) 1995-02-16

Family

ID=10668543

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69011344T Expired - Fee Related DE69011344T2 (de) 1989-12-28 1990-12-21 Optischer zeitbereich-reflektometer.

Country Status (8)

Country Link
US (1) US5307140A (de)
EP (1) EP0507805B1 (de)
JP (1) JP2895624B2 (de)
CA (1) CA2070428C (de)
DE (1) DE69011344T2 (de)
ES (1) ES2057854T3 (de)
GB (2) GB8929258D0 (de)
WO (1) WO1991010121A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6687632B1 (en) 1998-01-23 2004-02-03 Trilithic, Inc. Testing of CATV systems
US6381011B1 (en) * 1999-02-19 2002-04-30 Wilcom, Inc. Optical fault locator
EP1910795A4 (de) * 2005-07-29 2011-03-16 Acousticeye Ltd System und verfahren für das nichtdestruktive testen von rohrsystemen
CN102025416B (zh) * 2009-09-22 2013-12-04 华为技术有限公司 一种定位海缆故障的方法、中继器及通信系统
CN103984184B (zh) * 2014-05-19 2016-08-24 上海交通大学 光脉冲压缩反射装置
US20230288191A1 (en) * 2020-06-22 2023-09-14 Nippon Telegraph And Telephone Corporation Strain change measuring device and strain change measuring method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57120836A (en) * 1981-01-19 1982-07-28 Nippon Telegr & Teleph Corp <Ntt> Method for searching fault of optical fiber
DD273119A1 (de) * 1988-06-17 1989-11-01 Koepenick Funkwerk Veb Verfahren und anordnung zum messen von stoerstellen in lichtwellenleitern

Also Published As

Publication number Publication date
GB2256555B (en) 1994-05-04
GB8929258D0 (en) 1990-02-28
US5307140A (en) 1994-04-26
WO1991010121A1 (en) 1991-07-11
EP0507805A1 (de) 1992-10-14
CA2070428A1 (en) 1991-06-29
JP2895624B2 (ja) 1999-05-24
JPH05502724A (ja) 1993-05-13
GB2256555A (en) 1992-12-09
EP0507805B1 (de) 1994-08-03
GB9211994D0 (en) 1992-09-23
ES2057854T3 (es) 1994-10-16
CA2070428C (en) 2001-10-30
DE69011344T2 (de) 1995-02-16

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: QINETIQ LTD., LONDON, GB

8339 Ceased/non-payment of the annual fee