AXIS SYMMETRIC VERTICAL MAGNETIC FIELD SENSOR SYSTEM

摘要

An axis symmetric vertical magnetic field sensor system configuring a prometal tag and a sensor system for enhancing vertical magnetic field, characterized in that the system is a substantially axis symmetric magnetic body having a protrusion substantially in the center of a circular or elliptical or polygonal magnetic body plate employed in a response system by an IC mounted on the surface of a metal or in a recess in metal surface and wound with a coil for generating a signal.