GRINDING BURN DETECTION DEVICE AND GRINDING BURN DETECTION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a grinding burn detection device and a grinding burn detection method capable of executing inline total inspection of grinding burn without requiring breakage of a measuring object component or the like, and miniaturizing a head part in comparison with a method utilizing an ultrasonic wave.;SOLUTION: This device has a measuring object excitation part 4 for exciting a workpiece W by an AC magnetic field, a detection means 5 for detecting a signal generated at an excitation time of the workpiece W by the measuring object excitation part 4, a Barkhausen noise detection circuit 14 for extracting a Barkhausen noise from a detection signal detected by the detection means 5, and a determination means 16 for determining existence of grinding burn in the workpiece W from the Barkhausen noise extracted by the Barkhausen noise detection circuit 14.;COPYRIGHT: (C)2010,JPO&INPIT