METAL DETECTION APPARATUS AND SYSTEM
PROBLEM TO BE SOLVED: To provide a metal detection apparatus and a system which excludes un-detecting and incorrect sensing and can detect only subject metal (weapon). SOLUTION: The metal detection apparatus is equipped with magnetic field applying coils which face each other and apply an AC magneti...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a metal detection apparatus and a system which excludes un-detecting and incorrect sensing and can detect only subject metal (weapon). SOLUTION: The metal detection apparatus is equipped with magnetic field applying coils which face each other and apply an AC magnetic field, a plurality of magnetic sensors which are located in each front surface of each of the coils and detect change of the magnetic field which change is caused by metal, and a control part which identifies a kind of the metal from the detected signal. COPYRIGHT: (C)2004,JPO |
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