Unite de detection pour installations de securite

Detection apparatus for security systems

Abstract

2056446 9113413 PCTABS00007 Detection apparatus for a security and/or surveillance system is disclosed, which comprises a detection coil for detecting an AC magnetic field generated when a magnetically active tag or marker comes into proximity with said detection coil, characterised in that the detection coil has a ferromagnetic core formed of a material possessing high magnetic permeability and low coercive force. The apparatus preferably includes a screening material.

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