Lumped-parameter thermal model of a write transducer for clearance control on magnetic recording device
US9824699B1 · kind B1 · utility
1Cited by
3References
20Claims
0Family size
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Key dates
| Filing date | Jan 31, 2017 |
| Grant date | Nov 21, 2017 |
| Priority date | — |
| Expiry date | Jan 31, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A lumped-parameter function δ is determined that represents an average power dissipated by a write transducer when writing a signal to a magnetic recording medium. Temperatures of the write transducer are measured while varying the parameters to determine constants of the function δ. The function δ is used to adjust power applied to a clearance control heater when writing to the magnetic recording medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.