FR3093812B1 - Detection de defaut par reflectometrie - Google Patents

Detection de defaut par reflectometrie Download PDF

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Publication number
FR3093812B1
FR3093812B1 FR1902723A FR1902723A FR3093812B1 FR 3093812 B1 FR3093812 B1 FR 3093812B1 FR 1902723 A FR1902723 A FR 1902723A FR 1902723 A FR1902723 A FR 1902723A FR 3093812 B1 FR3093812 B1 FR 3093812B1
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France
Prior art keywords
reflectometry
voltage
frequency
injection
fault detection
Prior art date
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Active
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FR1902723A
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English (en)
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FR3093812A1 (fr
Inventor
Emmanuel Bussy
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.)
Safran Electrical and Power SAS
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Safran Electrical and Power SAS
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 Safran Electrical and Power SAS filed Critical Safran Electrical and Power SAS
Priority to FR1902723A priority Critical patent/FR3093812B1/fr
Priority to US17/439,164 priority patent/US11703533B2/en
Priority to PCT/FR2020/050543 priority patent/WO2020188208A1/fr
Publication of FR3093812A1 publication Critical patent/FR3093812A1/fr
Application granted granted Critical
Publication of FR3093812B1 publication Critical patent/FR3093812B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G01R31/005—Testing of electric installations on transport means
    • G01R31/008—Testing of electric installations on transport means on air- or spacecraft, railway rolling stock or sea-going vessels
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Measurement Of Resistance Or Impedance (AREA)

Abstract

L’invention concerne un procédé de détection d’événement par réflectométrie dans une ligne électrique d’un système avionique, ladite ligne étant alimentée par une tension alternative à une première fréquence (f1), ladite tension alternative étant sinusoïdale et composée d’une succession de demi-périodes alternées,ledit procédé comportant une étape d’injection d’un signal de réflectométrie dans le réseau, le signal de réflectométrie présentant une deuxième fréquence (f2) supérieure à la première fréquence (f1) ;dans lequel l’étape d’injection est synchronisée avec la tension alternative, l’étape d’injection étant réalisée en injectant le signal de réflectométrie dans le réseau pendant une durée d’injection (ti) comprise entre le début et la fin d’une demi-période (t1) de la tension alternative d’alimentation. Figure pour l’abrégé : Fig. 1
FR1902723A 2019-03-15 2019-03-15 Detection de defaut par reflectometrie Active FR3093812B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR1902723A FR3093812B1 (fr) 2019-03-15 2019-03-15 Detection de defaut par reflectometrie
US17/439,164 US11703533B2 (en) 2019-03-15 2020-03-16 Fault detection by multi-carrier time-domain reflectometery (MCTDR)
PCT/FR2020/050543 WO2020188208A1 (fr) 2019-03-15 2020-03-16 Detection de defaut par reflectometrie multiporteuse mctdr

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1902723 2019-03-15
FR1902723A FR3093812B1 (fr) 2019-03-15 2019-03-15 Detection de defaut par reflectometrie

Publications (2)

Publication Number Publication Date
FR3093812A1 FR3093812A1 (fr) 2020-09-18
FR3093812B1 true FR3093812B1 (fr) 2021-05-07

Family

ID=67514805

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1902723A Active FR3093812B1 (fr) 2019-03-15 2019-03-15 Detection de defaut par reflectometrie

Country Status (3)

Country Link
US (1) US11703533B2 (fr)
FR (1) FR3093812B1 (fr)
WO (1) WO2020188208A1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2926141B1 (fr) * 2008-01-03 2010-03-19 Commissariat Energie Atomique Procede pour l'amelioration de la precision de detection et de localisation de defauts par reflectometrie dans un reseau electrique cable
FR3037147B1 (fr) 2015-06-04 2017-06-02 Win Ms Procede et dispositif de reflectometrie pour le diagnostic de cables en fonctionnement.
US9720028B1 (en) * 2016-09-28 2017-08-01 Livewire Innovation, Inc. Adaptive live circuit characterization

Also Published As

Publication number Publication date
US11703533B2 (en) 2023-07-18
WO2020188208A1 (fr) 2020-09-24
US20220163581A1 (en) 2022-05-26
FR3093812A1 (fr) 2020-09-18

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