Patent ID: 8098064
Filing Date: 2012-01-17
Classification: G01V

Abstract:
1. A metal detector, comprising: (a) at least one coil residing within an electromagnetic field, the coil generating a signal in response to a disturbance of the electromagnetic field; (b) a conveyor, the conveyor transporting a product through a region intersecting the electromagnetic field at a conveyor velocity; (c) a fitter, the filter being adapted to receive the signal and to alter a characteristic of the signal; (d) a filter control, the filter control being interconnected to the filter, the filter control being adapted to modify a characteristic of the fitter; and (e) a filter calibrator, the filter calibrator being adapted to determine an inherent parameter of the metal detector so as to permit the filter control to optimize operation of the filter by referring to a relationship between the conveyor velocity and the inherent parameter.