Apparatus and method for detecting contamination of object by a metal

摘要

The present invention provides apparatus for interactively observing metal or other electrolyte contamination of a product against a reference datum or calibration signal for that product; and modifying the datum signal on line to reflect changes in tolerances between the calibration and observed signals. The method can be used to optimise the calibration signal for a given product; or can be used to identify specific contaminants based upon their effect on the calibration signal. The invention enables an operator to optimise the calibration signal inter actively and thus reduce inaccuracies in the detection of contaminated products due to incorrect tolerances between the calibration and observed signals.