Magneto-optic eddy current imaging apparatus and method includin

Details Magneto-optic eddy current imaging apparatus and method includin Magneto-optic eddy current imaging apparatus and method includin

1993-12-15

1995-08-29

O'Shea, Sandra L.

Electricity: measuring and testing

Magnetic

With means to create magnetic field to test material

324225, G01N 2121

Patent

active

054463785

ABSTRACT:
A method of magneto-optic eddy current imaging for detecting defects in a ferrous metal, non-ferrous metal, or non-metallic structure test object uses a sensor, magnetic field system, optical system, a video camera and a display. The method includes canceling undesired background of a two-dimensional magneto-optically generated image of a defect in the test object by dithering the image and processing signals from the video camera in compatibility with the dithering. The image is dithered once per frame of the camera, or at a sub-multiple of the frame of the camera, and the dithering may be accomplished manually or mechanically.

REFERENCES:
patent: 4250451 (1981-02-01), Slagle
patent: 4523120 (1985-06-01), Assard et al.
patent: 4625167 (1986-11-01), Fitzpatrick
patent: 4755752 (1988-07-01), Fitzpatrick
patent: 4881813 (1989-11-01), Koo et al.
patent: 4894615 (1990-01-01), Mermelstein et al.
patent: 5053704 (1991-10-01), Fitzpatrick
patent: 5243278 (1993-09-01), Hulsing, II

Affiliated with

Also associated with

Rating

Magneto-optic eddy current imaging apparatus and method includin does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magneto-optic eddy current imaging apparatus and method includin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magneto-optic eddy current imaging apparatus and method includin will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1822067