Metal detector for detecting product impurities

Details Metal detector for detecting product impurities Metal detector for detecting product impurities

1986-07-07

1988-01-12

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

With means to create magnetic field to test material

209567, 324239, 340551, G01N 2772, G01R 3312, B07C 5344

Patent

active

047194219

ABSTRACT:
In a metal detector, such as may be used in a bakery, an adjustable phase shifter is provided to adjust the detectors for different products. The adjustable phase shifter is controlled electronically from the output signal so that the arrangement is self-adjusting.

REFERENCES:
patent: 3029380 (1962-04-01), Nicol
patent: 3566258 (1971-02-01), Mori et al.
patent: 3676772 (1972-07-01), Lee
patent: 3835371 (1974-09-01), Mirdadian et al.
patent: 4070612 (1978-01-01), McNeill et al.
patent: 4128803 (1978-12-01), Payne
patent: 4249128 (1981-02-01), Karbowski
patent: 4486713 (1984-12-01), Gifford
patent: 4563645 (1986-01-01), Kerr

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