| 摘要 |
PROBLEM TO BE SOLVED: To provide a device and method for measurement of magnetic characteristics capable of properly measuring the magnetic characteristics of a perpendicular magnetic recording medium. SOLUTION: The magnetic characteristic measuring device A includes: an electromagnet 1 making a perpendicular magnetic field act on a measurement unit of a magnetic disk B; a variable fixed current supplying means 2 supplying a DC driving current to the electromagnet 1 in a prescribed variable range; a magnetic reading means 3 reading a leakage magnetic field from the magnetic disk B; measurement unit moving means 6 and 7 repetitively moving the measurement unit from a position opposed to magnetic poles 1A and 1B to a position opposed to the magnetic reading means 3; a current variably controlling means 8 variably controlling the DC driving current via the variable fixed current supplying means 2 whenever prescribed movement operation is performed by the measurement unit moving means 6 and 7; and a signal waveform analyzing means 10 acquiring the signal output from the magnetic reading means 3 and analyzing the signal waveform thereof whenever the prescribed movement operation is performed by the measurement unit moving means 6 and 7. COPYRIGHT: (C)2010,JPO&INPIT
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