Method And Apparatus For Fluorescent Magnetic Particle And Fluorescent Liquid Penetrant Testing.
On 8/9/2007, United States Patent App. 20070181822 was published.
The abstract is as follows:
The invention includes a method and apparatus for viewing fluorescent indicating materials for performing fluorescent magnetic particle testing and fluorescent liquid penetrant testing. In this method of nondestructive testing, the invention replaces ultraviolet light with the combination of a source of blue light that is substantially or entirely devoid of ultraviolet radiation and a yellow barrier filter. The method uses fluorescent indicating materials currently commercially available and originally designed for use with ultraviolet light sources.
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