Fluorescent magnetic particle testing method and fluorescent magnetic particle flaw detector

摘要

And in which it is possible to obtain an image of the clear bright fluorescent magnetic particle pattern, eliminating a complicated mechanism, to provide a fluorescent magnetic particle device with excellent maintainability and low cost, the fluorescent magnetic particle device, a light source 26 of the ultraviolet irradiation device 25 CCD camera by adding a video signal multiplying function and functions to open the shutter light-emitting time of the strobe light, and has a band-pass filter 32 as a strobe light, and transmits only the spectral band of the fluorescence to the front of the imaging device 30 I have a. Thus, a clear fluorescent magnetic particle pattern can be obtained and faster relative speed between the inspection device and the material to be inspected has become possible.