DE69022696T2 - Verfahren zum Nachweisen u. Kennzeichnen von Anomalien in einem Ausbreitungsmedium. - Google Patents

Verfahren zum Nachweisen u. Kennzeichnen von Anomalien in einem Ausbreitungsmedium.

Info

Publication number
DE69022696T2
DE69022696T2 DE69022696T DE69022696T DE69022696T2 DE 69022696 T2 DE69022696 T2 DE 69022696T2 DE 69022696 T DE69022696 T DE 69022696T DE 69022696 T DE69022696 T DE 69022696T DE 69022696 T2 DE69022696 T2 DE 69022696T2
Authority
DE
Germany
Prior art keywords
detection
methods
propagation medium
identify anomalies
anomalies
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
DE69022696T
Other languages
English (en)
Other versions
DE69022696D1 (de
Inventor
Dennis L Holmbo
Wendelyn Gavett
Barry L Rosenow
Michael S Overton
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.)
Tektronix Inc
Original Assignee
Tektronix Inc
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 Tektronix Inc filed Critical Tektronix Inc
Application granted granted Critical
Publication of DE69022696D1 publication Critical patent/DE69022696D1/de
Publication of DE69022696T2 publication Critical patent/DE69022696T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08—Locating faults in cables, transmission lines, or networks
    • G01R31/11—Locating faults in cables, transmission lines, or networks using pulse reflection methods
    • 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
    • G01M11/3109—Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR
    • G01M11/3145—Details of the optoelectronics or data analysis
DE69022696T 1989-12-12 1990-12-11 Verfahren zum Nachweisen u. Kennzeichnen von Anomalien in einem Ausbreitungsmedium. Expired - Fee Related DE69022696T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/450,120 US5155439A (en) 1989-12-12 1989-12-12 Method of detecting and characterizing anomalies in a propagative medium

Publications (2)

Publication Number Publication Date
DE69022696D1 DE69022696D1 (de) 1995-11-02
DE69022696T2 true DE69022696T2 (de) 1996-06-20

Family

ID=23786843

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69022696T Expired - Fee Related DE69022696T2 (de) 1989-12-12 1990-12-11 Verfahren zum Nachweisen u. Kennzeichnen von Anomalien in einem Ausbreitungsmedium.

Country Status (4)

Country Link
US (1) US5155439A (de)
EP (1) EP0433020B1 (de)
JP (1) JP2955957B2 (de)
DE (1) DE69022696T2 (de)

Families Citing this family (89)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4220409C2 (de) * 1992-06-19 1995-07-20 Siemens Ag Verfahren zum Gewinnung von Anomalien einer zu untersuchenden Leitung
CN1036419C (zh) * 1992-11-19 1997-11-12 淄博科汇电气有限公司 一种电力电缆故障自动测距方法及装置
DE4302451A1 (de) * 1993-01-29 1994-08-18 Grahnert Werner Verfahren zur Reduzierung determinierter Störungen
US5365328A (en) * 1993-05-21 1994-11-15 Tektronix, Inc. Locating the position of an event in acquired digital data at sub-sample spacing
CA2108801A1 (en) * 1993-10-20 1995-04-21 David D. Liao Method for finding and measuring optical features using an optical time domain reflectometer
GB9322920D0 (en) * 1993-11-06 1993-12-22 Bicc Plc Device for testing an electrical line
US5552881A (en) * 1994-03-17 1996-09-03 Teradyne, Inc. Method and apparatus for scanning a fiber optic network
US5661385A (en) * 1994-12-19 1997-08-26 The Regents Of The University Of California Window-closing safety system
US5528356A (en) * 1995-03-20 1996-06-18 Tektronix, Inc. Apparatus and method for displaying multiple sample spacing waveform segments
US5708500A (en) * 1997-02-04 1998-01-13 Tektronix, Inc. Multimode optical time domain reflectometer having improved resolution
US6195614B1 (en) * 1997-06-02 2001-02-27 Tektronix, Inc. Method of characterizing events in acquired waveform data from a metallic transmission cable
US6104197A (en) * 1997-06-02 2000-08-15 Tektronix, Inc. Apparatus for acquiring waveform data from a metallic transmission cable
US5963313A (en) * 1998-05-15 1999-10-05 Tektronix, Inc. Optical time domain reflectometer with bandwidth correction
US6751560B1 (en) 2000-08-01 2004-06-15 The Charles Stark Draper Laboratory, Inc. Non-invasive pipeline inspection system
US7132617B2 (en) * 2002-02-20 2006-11-07 Daimlerchrysler Corporation Method and system for assessing quality of spot welds
FR2844354B1 (fr) * 2002-09-05 2005-09-30 Cit Alcatel Procede de reflectometrie a onde optique polarisee (potdr)
US6949933B2 (en) * 2004-02-25 2005-09-27 The Boeing Company Apparatus and method for monitoring electrical cable chafing via optical waveguides
JP4902213B2 (ja) * 2006-02-03 2012-03-21 株式会社フジクラ 光線路監視装置及び方法
CN101360984B (zh) 2006-02-03 2011-07-20 株式会社藤仓 光线路监视装置和光线路监视方法
US8237921B2 (en) * 2006-07-03 2012-08-07 Anritsu Corporation Optical time domain reflectometer and method for testing optical fiber using optical pulse
US9867530B2 (en) 2006-08-14 2018-01-16 Volcano Corporation Telescopic side port catheter device with imaging system and method for accessing side branch occlusions
WO2009009802A1 (en) 2007-07-12 2009-01-15 Volcano Corporation Oct-ivus catheter for concurrent luminal imaging
US9622706B2 (en) 2007-07-12 2017-04-18 Volcano Corporation Catheter for in vivo imaging
US9596993B2 (en) 2007-07-12 2017-03-21 Volcano Corporation Automatic calibration systems and methods of use
US8222906B2 (en) * 2008-06-19 2012-07-17 Paul Francis Wyar Adaptive pulse width time domain reflectometer
US7777496B2 (en) * 2008-07-18 2010-08-17 The United States Of America As Represented By The Secretary Of The Army Remote sensor system for monitoring the condition of earthen structure and method of its use
WO2011147030A1 (en) * 2010-05-27 2011-12-01 Exfo Inc. Multiple-acquisition otdr method and device
US11141063B2 (en) 2010-12-23 2021-10-12 Philips Image Guided Therapy Corporation Integrated system architectures and methods of use
US11040140B2 (en) 2010-12-31 2021-06-22 Philips Image Guided Therapy Corporation Deep vein thrombosis therapeutic methods
WO2013033592A1 (en) 2011-08-31 2013-03-07 Volcano Corporation Optical-electrical rotary joint and methods of use
JP5592872B2 (ja) * 2011-12-28 2014-09-17 アンリツ株式会社 光パルス試験方法及び光パルス試験装置
US10070827B2 (en) 2012-10-05 2018-09-11 Volcano Corporation Automatic image playback
US9286673B2 (en) 2012-10-05 2016-03-15 Volcano Corporation Systems for correcting distortions in a medical image and methods of use thereof
US9858668B2 (en) 2012-10-05 2018-01-02 Volcano Corporation Guidewire artifact removal in images
US9292918B2 (en) 2012-10-05 2016-03-22 Volcano Corporation Methods and systems for transforming luminal images
US11272845B2 (en) 2012-10-05 2022-03-15 Philips Image Guided Therapy Corporation System and method for instant and automatic border detection
US9367965B2 (en) 2012-10-05 2016-06-14 Volcano Corporation Systems and methods for generating images of tissue
US10568586B2 (en) 2012-10-05 2020-02-25 Volcano Corporation Systems for indicating parameters in an imaging data set and methods of use
US9307926B2 (en) 2012-10-05 2016-04-12 Volcano Corporation Automatic stent detection
EP2904671B1 (de) 2012-10-05 2022-05-04 David Welford Systeme und verfahren zum verstärken von licht
US9324141B2 (en) 2012-10-05 2016-04-26 Volcano Corporation Removal of A-scan streaking artifact
US9840734B2 (en) 2012-10-22 2017-12-12 Raindance Technologies, Inc. Methods for analyzing DNA
US9423316B2 (en) 2012-11-28 2016-08-23 Exfo Inc. Optical reflectometer with loss and/or reflectance profile view
EP2931132B1 (de) 2012-12-13 2023-07-05 Philips Image Guided Therapy Corporation Vorrichtung zur gezielten kanülierung
US11406498B2 (en) 2012-12-20 2022-08-09 Philips Image Guided Therapy Corporation Implant delivery system and implants
CA2895989A1 (en) 2012-12-20 2014-07-10 Nathaniel J. Kemp Optical coherence tomography system that is reconfigurable between different imaging modes
CA2895502A1 (en) 2012-12-20 2014-06-26 Jeremy Stigall Smooth transition catheters
US10939826B2 (en) 2012-12-20 2021-03-09 Philips Image Guided Therapy Corporation Aspirating and removing biological material
US9730613B2 (en) 2012-12-20 2017-08-15 Volcano Corporation Locating intravascular images
US10942022B2 (en) 2012-12-20 2021-03-09 Philips Image Guided Therapy Corporation Manual calibration of imaging system
US9486143B2 (en) 2012-12-21 2016-11-08 Volcano Corporation Intravascular forward imaging device
EP2934653B1 (de) 2012-12-21 2018-09-19 Douglas Meyer Rotierender ultraschallbildgebungskatheter mit einem erweiterten katheterkörperteleskop
JP2016501623A (ja) 2012-12-21 2016-01-21 アンドリュー ハンコック， 画像信号のマルチ経路処理のためのシステムおよび方法
US9612105B2 (en) 2012-12-21 2017-04-04 Volcano Corporation Polarization sensitive optical coherence tomography system
CA2895993A1 (en) 2012-12-21 2014-06-26 Jason Spencer System and method for graphical processing of medical data
US10058284B2 (en) 2012-12-21 2018-08-28 Volcano Corporation Simultaneous imaging, monitoring, and therapy
JP2016508233A (ja) 2012-12-21 2016-03-17 ナサニエル ジェイ． ケンプ， 光学スイッチを用いた電力効率のよい光学バッファリング
WO2014100530A1 (en) 2012-12-21 2014-06-26 Whiseant Chester System and method for catheter steering and operation
US10166003B2 (en) 2012-12-21 2019-01-01 Volcano Corporation Ultrasound imaging with variable line density
CA2896006A1 (en) 2012-12-21 2014-06-26 David Welford Systems and methods for narrowing a wavelength emission of light
US9134197B2 (en) 2013-01-15 2015-09-15 Exfo Inc. Bi-directional multi-pulsewidth optical time-domain reflectometer
US10226597B2 (en) 2013-03-07 2019-03-12 Volcano Corporation Guidewire with centering mechanism
EP2965263B1 (de) 2013-03-07 2022-07-20 Bernhard Sturm Multimodale segmentierung in intravaskulären bildern
US11154313B2 (en) 2013-03-12 2021-10-26 The Volcano Corporation Vibrating guidewire torquer and methods of use
EP2967391A4 (de) 2013-03-12 2016-11-02 Donna Collins Systeme und verfahren zur diagnose koronarer mikrovaskulärer erkrankungen
US9301687B2 (en) 2013-03-13 2016-04-05 Volcano Corporation System and method for OCT depth calibration
JP6339170B2 (ja) 2013-03-13 2018-06-06 ジンヒョン パーク 回転式血管内超音波装置から画像を生成するためのシステム及び方法
US11026591B2 (en) 2013-03-13 2021-06-08 Philips Image Guided Therapy Corporation Intravascular pressure sensor calibration
EP2967606B1 (de) 2013-03-14 2018-05-16 Volcano Corporation Filter mit echogenen eigenschaften
US10219887B2 (en) 2013-03-14 2019-03-05 Volcano Corporation Filters with echogenic characteristics
US10292677B2 (en) 2013-03-14 2019-05-21 Volcano Corporation Endoluminal filter having enhanced echogenic properties
US9097615B2 (en) * 2013-07-22 2015-08-04 Verizon Patent And Licensing Inc. Fiber signal loss event identification
US9341543B2 (en) 2014-10-16 2016-05-17 Texas Instruments Incorporated Method and OTDR apparatus for optical cable defect location with reduced memory requirement
CA2966750A1 (en) * 2014-11-04 2016-05-12 Afl Telecommunications Llc Merging technique for otdr traces captured by using different settings
US9641243B2 (en) 2015-02-23 2017-05-02 Exfo Inc. Safe-mode OTDR method
US10322522B2 (en) 2015-03-12 2019-06-18 Robert Bosch Tool Corporation Electrical configuration for object detection system in a saw
US10786854B2 (en) 2015-03-12 2020-09-29 Robert Bosch Tool Corporation Table saw with electrically isolated arbor shaft
US9969015B2 (en) 2015-03-12 2018-05-15 Robert Bosch Tool Corporation Power tool with protected coupling plate
US10821529B2 (en) 2015-03-12 2020-11-03 Robert Bosch Tool Corporation Power tool with improved belt tensioning
US10758989B2 (en) * 2015-03-12 2020-09-01 Robert Bosch Tool Corporation System and method for sensing cable fault detection in a saw
US10799964B2 (en) 2015-03-12 2020-10-13 Robert Bosch Tool Corporation Table saw with pulley alignment mechanism
US10454889B2 (en) * 2015-10-26 2019-10-22 Oath Inc. Automatic anomaly detection framework for grid resources
JP6387025B2 (ja) * 2016-01-08 2018-09-05 北海道電力株式会社 判定装置、判定方法、及びプログラム
US10101240B1 (en) 2017-04-27 2018-10-16 Viavi Solutions France SAS Optical time-domain reflectometer device including combined trace display
JP2019090696A (ja) * 2017-11-15 2019-06-13 横河電機株式会社 温度測定システムおよび温度測定方法
US11181440B2 (en) 2018-10-11 2021-11-23 Exfo Inc. OTDR method targeting identified event
US11271641B1 (en) 2019-01-15 2022-03-08 Exfo Inc. OTDR method for end-to-end optical fiber link characterization
WO2021038648A1 (ja) * 2019-08-23 2021-03-04 日本電信電話株式会社 光ファイバ試験方法、光ファイバ試験装置、およびプログラム
CN115065404A (zh) * 2022-06-30 2022-09-16 青岛诺克通信技术有限公司 一种光时域反射计及链路分析方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2362572C3 (de) * 1973-12-17 1978-07-20 Hans Henneberg Apparatebau, 7000 Stuttgart Schaltungsanordnung zur Ortung von Fehlerstellen an einem Kabel
CA1044760A (en) * 1974-10-09 1978-12-19 Lim C. Hwa Methods and equipment for testing reflection points of transmission lines
GB1517768A (en) * 1975-12-24 1978-07-12 Rasmussen As E System for localizing a spot along a conductor in which an impedance change such as a break or short circuit occurs
DE2953266A1 (de) * 1978-05-31 1980-11-27 Bicc Ltd Verfahren und vorrichtung zum ermitteln und lokalisieren von fehlern in elektrischen kabeln
CH649847A5 (en) * 1979-05-04 1985-06-14 Bbc Brown Boveri & Cie Method for fault location in an electrical line
DE2918550A1 (de) * 1979-05-08 1980-11-13 Siemens Ag Verfahren und messeinrichtung zur bestimmung von stoerstellen auf nachrichtenuebertragungsleitungen
DE3115200A1 (de) * 1981-04-15 1983-02-03 Philips Kommunikations Industrie AG, 8500 Nürnberg Verfahren zur messung von impulslaufzeiten, fehlerorten und daempfung auf kabeln und lichtwellenleitern
JPS5960337A (ja) * 1982-09-30 1984-04-06 Tohoku Electric Power Co Inc 光フアイバ・ロケ−タ
US5000568A (en) * 1986-11-26 1991-03-19 Hewlett-Packard Company Spread spectrum optical time domain reflectometer
US4812038A (en) * 1987-01-21 1989-03-14 Hewlett-Packard Company Adaptive selection of OTDR test parameters and the fusion of data taken from successively shrinking measurement spans
JPH01141331A (ja) * 1987-11-27 1989-06-02 Anritsu Corp 光パルス試験器
US4958926A (en) * 1988-10-31 1990-09-25 Reliance Comm/Tec Corporation Closed loop control system for laser

Also Published As

Publication number Publication date
JP2955957B2 (ja) 1999-10-04
JPH0499943A (ja) 1992-03-31
DE69022696D1 (de) 1995-11-02
EP0433020A3 (en) 1993-06-09
EP0433020A2 (de) 1991-06-19
US5155439A (en) 1992-10-13
EP0433020B1 (de) 1995-09-27

Similar Documents

Publication Publication Date Title
DE69022696T2 (de) Verfahren zum Nachweisen u. Kennzeichnen von Anomalien in einem Ausbreitungsmedium.
DE69110697D1 (de) Verfahren und System zum digitalen Laufzeitmessen von akustischen Impulsen in einem flüssigen Medium.
DE3575621D1 (de) Verfahren und anordnung zum kennzeichnen und erkennen von gegenstaenden.
DE59010346D1 (de) Verfahren sowie Anordnung zum Bestimmen von Kanten in Bildern
DE69124437D1 (de) Verfahren und Vorrichtung zum Umkehren von Byteordnung in einem Rechner
DE68915202D1 (de) Verfahren zur Vermehrung und zum Nachweis von Nukleinsäuresequenzen.
DE3855714D1 (de) Verfahren und Zusammensetzung zum Nachweis von Natrium-Ionen in Flüssigkeiten
DE69032517D1 (de) Verfahren und System zum dynamischen Identifizieren von Datenträgern in einem Gestaltungsdateisystem
DE69308032T2 (de) Verfahren und system zum verbinden von objekten in einem rechnersystem
DE3750207D1 (de) Verfahren und Vorrichtung zum Feststellen von Bewegung in einem Fernsehsignal.
KR880700266A (ko) 와류를 이용한 결함 검출 방법 및 장치
DE69006613T2 (de) Anordnung und Verfahren zum Zusammenbau von Aufzeichnungseinheiten in einem elektrophotographischen Aufzeichnungsgerät.
DE69030938D1 (de) Netzwerkplattensystem und Verfahren zum Schreiben und Lesen in einem Netzwerkplattensystem
DE3483831D1 (de) Hydraulisch betaetigte vorrichtung und verfahren zum sortieren von teilchen verschiedener dichte.
DE69022352D1 (de) Verfahren zum Aufzeichnen und Nachweisen eines Musters von ionisierender Strahlung.
DE68901229D1 (de) Verfahren zum plissieren von stoffen und plissierte stoffe.
DE68911619T2 (de) Reagenz und verfahren zum nachweis von rheumatoiden faktoren.
DE3577919D1 (de) Pruefmedium und verfahren zum nachweis von phosphorhaltigen aussonderungen in metallischem material.
DE3672704D1 (de) Verfahren und einrichtung zum ermitteln eines winkels in einem grossen bereich.
DE69026599T2 (de) Verfahren zum verdichten von charakterdaten und verfahren zur änderung der charakter
DE69018386D1 (de) Verfahren und Gerät zum Fühlen von akustischen Wellen in einem flüssigen Medium.
AT389468B (de) Verfahren und vorrichtung zum zerkleinern von gut
DE69229138T2 (de) Funkrufeinrichtung und Verfahren zum Einschreiben von Informationen in einem ROM der Funkrufeinrichtung
DE59107810D1 (de) Verfahren zum Nachweis von Antikörpern
DE68927143T2 (de) Verfahren und Vorrichtung zum automatischen Beweisen von Theoremen für Informationsverarbeitung

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee