Thermal asperity sensor head with multiple spaced asperity sensors
US5808184A · kind A · utility
30Cited by
13References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 13, 1997 |
| Grant date | Sep 15, 1998 |
| Priority date | — |
| Expiry date | May 13, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B21/21
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An asperity sensing head is used for detecting asperities on the surface of a disc while the disc is rotated. The asperity sensing head includes a slider body having a first rail and an air bearing surface. A first asperity sensor is carried by the slider body in the first rail. A second asperity sensor is also carried by the slider body in the first rail wherein the first and second asperity sensors are separated by a groove in the first rail.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.