Method and apparatus for balancing a spindle in a hard disk drive

摘要

An apparatus for balancing and centering a disk comprising a sensor that produces a signal indicative of the disk's deviation from a desired dimension and a movable reference surface that moves the disk in response to the signal from the sensor. The apparatus may include a microprocessor connected to a balance analyzer. Feedback from the balance analyzer can be used to compensate for setup errors, thermal drift, and tool wear.