Method for monitoring the physical state of a rail
US12214814B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 23, 2021 |
| Grant date | Feb 4, 2025 |
| Priority date | — |
| Expiry date | Dec 16, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/2623
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a method for monitoring the physical state of a longitudinal element (IO) of a railway-type rail, the method having a step of detecting mechanical waves moving along the longitudinal element (IO), in particular due to the passing of a train, by means of an array of mechanical wave sensors placed along and in contact with the longitudinal element, the array having at least one first pair (A) of sensors each positioned at one end of a first portion (IOa) of the longitudinal element (IO), and a step of processing the signals emitted by the sensors in the array of sensors, the processing step having the determination of at least one first interfered signal determined from signals provided by the sensors in the first pair (A) of sensors over a first predetermined period of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.