Actuation efficiency based contact detection
US7558015B2 · kind B2 · utility
0Cited by
25References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2007 |
| Grant date | Jul 7, 2009 |
| Priority date | — |
| Expiry date | Oct 3, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/6064
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In one example, a method is provided and includes comparing a measured change in spacing between a transducer element and a storage element in response to a fly height control signal with an expected change in spacing for the applied fly height control signal. The method also includes detecting an event condition based on the comparison between the measured change in spacing and the expected change in spacing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.