| 摘要 |
<P>PROBLEM TO BE SOLVED: To achieve more accurate measurement of mass percent of a magnetic component in a magnetic particulate than ever before without making complicated adjustments of a specimen. <P>SOLUTION: A measuring device includes: a calibration curve storing part 613 for storing a calibration curve that shows a relationship between an apparent susceptibility of a magnetic particulate and bulk density of a magnetic component in the magnetic particulate; an apparent susceptibility calculation part 612 for calculating the apparent susceptibility of the magnetic particulate based on inductance acquired by an inductance acquisition part 611; a first bulk density calculation part 614 for using the calibration curve to calculate the bulk density of the magnetic component in the magnetic particulate from the apparent susceptibility of the magnetic particulate; a second bulk density calculation part 616 for calculating the bulk density of the magnetic particulate based on empty weight of a retaining cylinder, its total weight and its inner volume; and a magnetic component mass percent calculation part 617 for calculating a mass percent of the magnetic component in the magnetic particulate based on the bulk density of the magnetic component in the magnetic particulate and the bulk density of the magnetic particulate. <P>COPYRIGHT: (C)2013,JPO&INPIT |
