Method for characterizing a soft fault in a cable
US10359465B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2016 |
| Grant date | Jul 23, 2019 |
| Priority date | — |
| Expiry date | Sep 16, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/083
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for characterizing a fault affecting a cable in which a reference signal s of limited time support is injected and a measurement r of the reflection of the reference signal s in the cable is taken, comprises the following steps: identifying a section of the measurement r corresponding to a fault, this measurement section being called the signature of the fault; generating a modified reference signal s′, of parameterizable amplitude, equal to the sum of the reference signal s and of the reference signal s inverted and delayed by a parameterizable delay; determining conjointly the values of the parameterizable delay and of the parameterizable amplitude that minimize the error between the modified reference signal s′ and the signature of the fault; and deducing therefrom an estimation of the length of the fault from the determined value of the delay.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.