Electricity: measuring and testing – Magnetic – With means to create magnetic field to test material
Patent
1997-12-22
2000-03-21
Snow, Walter E.
Electricity: measuring and testing
Magnetic
With means to create magnetic field to test material
324262, G01R 3312, G01N 2772
Patent
active
06040695&
ABSTRACT:
An eddy current probe for use in inspecting an object, includes a driver having a coil with an effective coil axis, and further includes a receiver having a coil with a coil axis oriented substantially perpendicular to the driver coil effective coil axis, the receiver having a length, and a width, the length being the dimension in the direction parallel to the scanning path, and the width having a dimension magnitude substantially greater than that of the length. A method for inspecting an object uses such an eddy current probe. An eddy current probe for use in inspecting an object, includes a driver having a coil with an effective coil axis, the driver having a length and a width, the length being the dimension in a direction substantially parallel to a scanning path, and further includes a receiver having a coil with a coil axis oriented substantially perpendicular to the driver coil effective coil axis, where the magnitude of a distance between the receiver and at least one of the edges is less than 0.125 times the width of the driver. A method for inspecting an object uses such an eddy current probe.
REFERENCES:
patent: 3061775 (1962-10-01), Reznowski
patent: 3242426 (1966-03-01), Burbank
patent: 5047719 (1991-09-01), Johnson et al.
Amos Jay
Raulerson David A.
Smith Kevin D.
Snow Walter E.
United Technologies Corporation
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