Eddy current pipeline inspection device and method
US6456066B1 · kind B1 · utility
17Cited by
8References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 25, 2000 |
| Grant date | Sep 24, 2002 |
| Priority date | — |
| Expiry date | May 25, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/902
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pipeline inspection vehicle which can be towed through a pipeline via a cable. The vehicle includes a power unit, a master processor module, and a coil which generates an eddy current field which passes along the pipe. The resultant field is detected by a master sensor ring and slave sensor ring. Information on an amplitude and phase of the detected field together with vehicle orientation information is sent to a base station which has a computer. A distance encoder also is provided to assist in locating the position of any detected faults.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.