Metal detector

Details Metal detector Metal detector

2004-03-05

2008-09-09

Aurora, Reena (Department: 2862)

Electricity: measuring and testing

Magnetic

With means to create magnetic field to test material

C324S326000

Reexamination Certificate

active

07423422

ABSTRACT:
A memory (33) is provided for storing in advance data of signals supplied from a detector unit (26) when a plurality of metallic foreign matter samples differing in magnitude passes an alternating field, and data representing the magnitude of each foreign matter sample. A setting device (32) causes an indicator36to display the magnitude of metal detectable by a determination device (31) on the basis of those data on the foreign matter samples. Further, a contained metal displaying device (34), when the determination device (31) has determined that metallic foreign matter is contained in the object of inspection, displays the magnitude of that metal content on the indicator (36). The user can intuitively grasp the detectable magnitude of metal and the magnitude of the metal contained in the object of inspection.

REFERENCES:
patent: 6812707 (2004-11-01), Yonezawa et al.
patent: 2-36390 (1990-02-01), None
patent: 3-123285 (1991-12-01), None
patent: 7-260943 (1995-10-01), None
patent: 9-304546 (1997-11-01), None
patent: 2001-13260 (2001-01-01), None
patent: 2001-91663 (2001-04-01), None

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