Method and apparatus for inducing ultrasonic waves into railroad rails
US6742392B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2002 |
| Grant date | Jun 1, 2004 |
| Priority date | — |
| Expiry date | Nov 8, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/2623
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for nondestructive testing a railroad rail is provided. The method includes locating at least one magnetic exciter adjacent to the rail, the at least one magnetic exciter includes an emitting end and a longitudinal axis extending perpendicularly through the emitting end, discharging the energy storage circuit through the at least one magnetic exciter such that only a magnetic pulse enters the rail at a location of the exciter, and controlling a shape of the magnetic pulse. The apparatus includes at least one magnetic exciter adjacent to a rail, a energy storage circuit electrically coupled to the at least one magnetic exciter the energy storage circuit is configured to supply a shaped current pulse to the at least one exciter, and a power source electrically coupled to the energy storage circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.