METHOD AND APPARATUS FOR CENTERING DISK ON SPINDLE, METHOD OF TESTING WITH SPINSTAND, AND SPINSTAND

摘要

PROBLEM TO BE SOLVED: To provide a method and apparatus for centering a disk (50) on a spindle (11), a spinstand (1), and a method of testing with the spinstand.;SOLUTION: The method of centering includes: attaching the disk to the spindle with a stick-slip clamp (14); determining a vector by which a center (54) of the disk is displaced from a spindle axis (52); aligning the vector with a movably mounted piezo actuator (23); and then applying a voltage to the piezo actuator to apply an impulse to the edge of the disk to cause the disk to slip in the clamp and reduce the displacement of the disk.;COPYRIGHT: (C)2012,JPO&INPIT