Optimization of the field profile on a high field strength magnetic detacher

A method for detaching a magnetic securing device from an item, the magnetic securing device secured by a clutch mechanism engaging a magnetic locking mechanism, the method comprising:

• receiving the magnetic securing device in a magnetic detacher, the magnetic detacher including:
• a core magnet having a body with a top surface and a bottom surface opposite the top surface, the core magnet producing a first magnetic field;
• and
• a ring magnet defining a cavity having a first diameter, the ring magnet having a body with a top surface and a bottom surface opposite the top surface, the ring magnet producing a second magnetic field and axially aligned with the core magnet such that the first magnetic field opposes the second magnetic field along the bodies of the respective magnets and enhances the second magnetic field within the cavity, the top surface of the core magnet separated from the bottom surface of the ring magnet by a predetermined distance thereby producing a resultant magnetic field having a first resultant field strength at a specific position greater than a second resultant field strength produced at the same position when the top surface of the core magnet abuts the bottom surface of the ring magnet;
• and
• using the field strength at the specific position to disengage the clutch mechanism to release the magnetic locking mechanism.