Internal accelerometer for improved servo performance and shock sensing on high performance disc drive heads
US5856895A · kind A · utility
25Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 2, 1997 |
| Grant date | Jan 5, 1999 |
| Priority date | — |
| Expiry date | Jul 2, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49812
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A data storage system head slider and a method of making the same are disclosed. The head slider includes a slider body and an accelerometer formed integrally with the slider body. In preferred embodiments, the accelerometer includes a cavity formed in the slider body. A structural beam extends over the cavity such that the structural beam deflects in response to acceleration of the head slider. A piezo transducer formed on the structural beam provides a transducer output signal indicative of a magnitude of the acceleration of the head slider.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.