Electromagnetic acoustic transducer (EMAT) for corrosion mapping
US11774409B2 · kind B2 · utility
0Cited by
8References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2021 |
| Grant date | Oct 3, 2023 |
| Priority date | — |
| Expiry date | Jan 12, 2042 |
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.