Title :
An evaluation method for spindle motor runout measurement
Author :
Huang, J.C. ; Bi, C.
Author_Institution :
Data Storage Inst., A*STAR, Singapore
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;
Conference_Titel :
Magnetic Recording Conference, 2009. APMRC '09. Asia-Pacific
Conference_Location :
Singapore
Print_ISBN :
978-9810-82191-3
DOI :
10.1109/APMRC.2009.4925407
