An evaluation method for spindle motor runout measurement

Author

Huang, J.C. ; Bi, C.

Author_Institution

Data Storage Inst., A*STAR, Singapore

fYear

2009

fDate

14-16 Jan. 2009

Firstpage

1

Lastpage

2

Abstract

In order to study the spindle motor vibration characterization, the runout of the motor must be measured accurately. In this paper, a method based on measurement uncertainty is presented to evaluate different measurement systems performance and measurement confidence. The system was developed based on optical interference technology. The spindle runout in the hard disk drives with different form factors are measured by capacitance probe, LDV and optical interferometer, and comparison of measurement result measured is discussed.

Keywords

capacitance; disc drives; electric motors; hard discs; light interference; light interferometry; measurement uncertainty; vibrations; LDV; capacitance probe; hard disk drives; measurement uncertainty; optical interference technology; optical interferometer; spindle motor runout measurement; vibration; Capacitance measurement; Density measurement; Instruments; Measurement uncertainty; Optical interferometry; Optical recording; Probability distribution; Probes; Time measurement; Vibration measurement; Capacitance probe; LDV; NRRO; Optical interference; Spindle motor; Uncertainty measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetic Recording Conference, 2009. APMRC '09. Asia-Pacific

Conference_Location

Singapore

Print_ISBN

978-9810-82191-3

Type

conf

DOI

10.1109/APMRC.2009.4925407

Filename

4925407