Rail inspection system
US10989694B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 11, 2017 |
| Grant date | Apr 27, 2021 |
| Priority date | — |
| Expiry date | Nov 1, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/2623
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Provided is a rail inspection system capable of accurately detecting a defect of a railroad rail. The system includes: a sensor part group that has a plurality of sensor parts having receiver coils, and first oscillator coils and second oscillator coils corresponding to the receiver coils being arranged in a line parallel in a width direction of a railroad rail to be inspected; an oscillation part that supplies an oscillation signal to each of the first oscillator coils and the second oscillator coils; and a detection part group that has a plurality of detection parts to detect, with respect to an output signal from each of the receiver coils when the sensor part group moves in a laying direction of the railroad rail, a first inspection signal corresponding to a first phase of the output signal and a second inspection signal corresponding to a second phase of the output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.