Patent ID: 6373243
Filing Date: 2002-04-16
Classification: G01R

Abstract:
A magnetic media tester, comprising:a spindle motor for rotating a magnetic disk to be evaluated at a desired rotational speed; a load/unload mechanism for loading a magnetic head for testing during evaluation of said magnetic disk and for unloading said magnetic head for testing after completion of said evaluation; a stage having a rotary shaft arranged thereon, said stage being provided with means for moving said magnetic head for testing in at least one direction for flexibly changing a positional relation of said spindle motor and said magnetic head for testing; a rotary positioner arranged to rotate about said rotary shaft; a suspension supported at an end of said rotary positioner, said magnetic head for testing being supported by said suspension; a voice coil disposed on said rotary positioner at an opposite end from said magnetic head for testing; a movable plate arranged to rotate around said rotary shaft; a lock pin provided on said moveable plate, said lock pin regulating the position of said rotary positioner based on the position of said lock pin; and a pair of magnets sandwiching said voice coil, thereby positioning said magnetic head for testing at said magnetic disk by the same construction as a hard disc drive of the actual machine.