Electromagnetic acoustic transducer
US4471658A · kind A · utility
23Cited by
3References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 8, 1982 |
| Grant date | Sep 18, 1984 |
| Priority date | — |
| Expiry date | Sep 8, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB06B1/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An improved electromagnetic acoustic transducer essentially which comprises supports located at both the ends of a core assembly, a plurality of ferrite members, a plurality of permanent magnets or electromagnets and a plurality of coils wound around the core assembly, said combination functioning to inspect for any defect in a tubing having a small diameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.