Dynammically symmetric actuator
US6473272B1 · kind B1 · utility
8Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2000 |
| Grant date | Oct 29, 2002 |
| Priority date | — |
| Expiry date | Sep 17, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/5582
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A dynamically symmetric actuator is disclosed for reducing off-track motion. The dynamically symmetric actuator of the present invention limits torsional or twisting motion of the actuator arm which reduces off-track motion. In one embodiment, the actuator arm includes a thickness step designed to balance stiffness of inner and outer portions of the actuator arm. The thickness step forms multi-thickness tiers, the dimensions of which can be modeled to optimize a first bending mode frequency of the actuator arm to further reduce off-track motion or errors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.