DENSITY DISTRIBUTION MEASURING METHOD FOR GREEN COMPACT AND DEVICE

PROBLEM TO BE SOLVED: To provide a density distribution measuring method for a green compact and its device for non-destructively performing 100% inspection on powder magnetic cores. SOLUTION: A magnetic field generating means 20 comprises a ring-shaped nonmagnetic body 22 and a coil 24, and generates a magnetic field by energizing the coil. A powder magnetic core 10 is disposed along the inner circumference of the nonmagnetic body 22. A magnetic detection part 40 is for measuring magnetic flux density of the powder magnetic core 10. The powder magnetic core 10 is pressed out of what is obtained by adding a binder resin and a lubricant to soft magnetic powder having electric resistance making it possible to suppress eddy current among soft magnetic powder particles. The density of the powder magnetic core 10 is measured through the magnetic flux density detected by the detection part 40. COPYRIGHT: (C)2009,JPO&INPIT