A permanent invisible magnetic marking and positioning system of
unfinished ferrous rods, bars, workpieces, and the like. A midpoint,
center or other point of the workpiece is automatically located and a
high-energy pulse is applied for installing an embedded magnetic marker.
The magnetizing heads can also be repositioned to various points on a
workpiece for imparting digital manufacturing and product identification
in a data strobe pulse, that is analogous to a picket fence, where each
picket provides a weighted binary representation in a data array
comprised of data cells.