Patent ID: 6617848
Filing Date: 2003-09-09
Classification: G01Q,G01R,G11B

Abstract:
A magnetic head measuring apparatus for executing measurement with respect to at least one measurement point on a recording head, comprising:a probe having a magnetic substance; a vibrator configured to vibrate said probe above the at least one measurement point; a first signal generator configured to supply a drive signal to said vibrator; a second signal generator configured to supply a current containing a direct current (DC) and an alternate current (AC) to the recording head to generate a magnetic field from the recording head; a detector configured to detect a signal corresponding to a force interaction that acts on said probe due to the magnetic field generated from the recording head in accordance with the current supplied by said second signal generator; and a measurement unit configured to measure current dependence of the magnetic field of the recording head from the signal detected by said detector.