Magnetostrictive actuator
US8471432B2 · kind B2 · utility
1Cited by
12References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2008 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Jun 30, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R15/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A magnetostrictive actuator comprises an assembly of at least two GMM rods (8, 9) spaced apart from each other on the same longitudinal axis, each rod being surrounded by a respective energising electromagnetic coil (10,11) 5 and being mounted between respective biasing permanent magnets (12, 13, 14), the assembly being mounted between mechanical pre-stressing means (20, 21) and a foot (3) adapted to couple the forces produced by the actuator into a surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.