Patent ID: 7355393

Claim:
A magnetic head slider test apparatus, which tests a magnetic head characteristic of a slider head under a condition that the slider head has at one side face thereof a plurality of connection terminals to be connected to the magnetic head, comprising; a frame shaped core having an air gap, a first and second coil provided on either side of the air gap for generating magnetic field of a predetermined intensity in the air gap, a probe provided for contacting the plurality of connection terminals and a table on which the head slider is mounted and which is able to advance and retreat with respect to the air gap so as to insert the head slider into the air gap, wherein the probe and the table are disposed on either side of the air gap in the direction perpendicular to the core, through advancing the table the slider head is inserted in the air gap and the plurality of the connection terminals are contacted with the probe, and for generating a DC magnetic field in the air gap the first coil and the second coil are connected in series and a predetermined drive current is flowed therethough and for generating a high frequency magnetic field in the air gap an AC drive current of more than 200 Hz is flowed through either the first coil or the second coil.