MAGNETIC DEVICE MEASURING APPARATUS AND MAGNETIC DEVICE MEASURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a magnetic device measuring apparatus capable of increasing an update frequency of magnetic field.SOLUTION: The magnetic device measuring apparatus comprises: a D/A converter 11 that uses as an input a sampling clock signal generated by a D/A sampling clock generator 12 generating a sampling clock signal having a constant cycle, and outputs a control voltage V obtained by D/A converting the sampling clock signal; a coil power source 10 that generates sine wave coil current for driving an electromagnet 15 by using the control voltage V outputted from the D/A converter 11; and a D/A converter 13 that D/A converts the sampling clock signal and outputs the converted signal as a measurement timing clock for a characteristics measuring apparatus 14. The D/A converter 13 generates a measurement timing clock having a timing at which amounts of change in isomagnetic field of the electromagnet are the same.