Patent · US Active

Method and system for diagnosing a cable by distributed reflectometry with self-selective average

US9417279B2 · kind B2 · utility

1Cited by

7References

9Claims

0Family size

Assignee

COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES · FR

Inventors

Luca Incarbone · Paris, FR
Laurent Sommervogel · Jouy-en-Josas, FR

Key dates

Filing date	Mar 21, 2013
Grant date	Aug 16, 2016
Priority date	—
Expiry date	Jun 5, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG01R31/58
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method of testing a cable by distributed reflectometry, comprises: injecting into the cable a first periodic signal and a second periodic signal having the same number N of periods and the same number M of samples per period as the first signal; acquiring a measurement of the reflection, from impedance discontinuities of the cable, of each of said first and second signals; taking the average of said measurements of the reflection of at least one of said first or second signals over all of its periods to produce at least one reflectogram; determining the positions of faults in the cable on the basis of at least the reflectogram; the method being wherein each period of the second signal is injected into the cable with a delay or an advance which has an increasing predetermined absolute value for each successively injected period.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.