NASA NTRS · 19840000231
Differential-Coil Eddy-Current Material Sorter
Abstract
Small metal or other electrically conductive parts of same shape but different composition quickly sorted with differential-coil eddy-current sorter. Developed to distinguish between turbine blades of different alloys, hardnesses, and residual stress, sorter generally applicable to parts of simple and complex shape.
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Nummelin, J., Buckley, D.. 1985-04-01. Differential-Coil Eddy-Current Material Sorter. https://ntrs.nasa.gov/citations/19840000231
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