Electromagnetic acoustic transducer (EMAT) for corrosion mapping
US11209401B2 · kind B2 · utility
1Cited by
8References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2018 |
| Grant date | Dec 28, 2021 |
| Priority date | — |
| Expiry date | Sep 27, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/101
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems and methods for detecting corrosion in pipes are disclosed herein. In one embodiment, an apparatus for detecting corrosion in an object includes an electromagnetic acoustic transducer (EMAT) having a ferromagnetic core and a plurality of permanent magnets arranged peripherally around the ferromagnetic core. The permanent magnets are arranged to produce a magnetic field through the ferromagnetic core. The apparatus also includes a coil between the ferromagnetic core and the object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.