Micro torque and micro stiffness measurement device
US7506552B2 · kind B2 · utility
5Cited by
5References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2007 |
| Grant date | Mar 24, 2009 |
| Priority date | — |
| Expiry date | Sep 19, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/455
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a method and apparatus for testing a head-gimbal assembly (HGA), a HGA is placed in contact with force transducers mounted on a rotational stage. The force transducers are adjusted to position the transducers around a rotational center of the rotational stage. The rotational stage is rotated, and the torque and variations in torque exerted by the HGA on the force transducers during rotation are measured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.