Method, system and apparatus for ferromagnetic wall monitoring
US7038445B2 · kind B2 · utility
12Cited by
29References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2002 |
| Grant date | May 2, 2006 |
| Priority date | — |
| Expiry date | May 31, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/82
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device and method is taught for detection of flaws and localized wall loss in pipes made of ferromagnetic-based material. The device utilizes a magnetic field generator to create a horizontal magnetic field of flux. A pipe is passed through the magnetic field where a magnetic fluctuation detector, for example multiple groups of hall units, identifies fluctuations in the magnetic field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.