Method to convert and calibrate the embedded contact sensor signal to clearance and spacing information using interface voltage control
US8976480B1 · kind B1 · utility
2Cited by
6References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2013 |
| Grant date | Mar 10, 2015 |
| Priority date | — |
| Expiry date | Oct 21, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/6035
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present invention generally relate to a method for obtaining head/disk clearance based on ECS signal. The ECS is calibrated by applying different interface voltages to cause changes in the head/disk clearance, the ECS signal at each interface voltage is obtained, and the relationship between the change in head/disk clearance and the ECS signal is calculated. From this relationship, the head/disk clearance may be obtained based on ECS signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.