Ferromagnetic detection enhancer compatible with magnetic resonance

A magnetic resonance compatible apparatus configured for increasing the ability to detect ferromagnetic objects passing under a hand-held detector by scanning for magnetic fields produced by those ferromagnetic objects themselves and by increasing the magnetization of the ferromagnetic objects while not exposing the personnel associated with the ferromagnetic objects to unsafe levels of magnetic fields, or to magnetic fields which exceed recognized safety levels, the magnetic resonance compatible apparatus including:

• at least one coil configured to generate a magnetic field positioned in the area of the object to be detected;
• an electrical energy storage capacitor bank capable of quickly releasing stored energy;
• a high speed, high current electronic switch capable of quickly transferring the stored energy from the capacitor bank to the coil thereby producing in the coil a short duration, single polarity magnetic field pulse;
• a sample and hold circuit capable of acquiring magnetic field sensor data during periods when the pulsed magnetic field is not present;
• and
• a microprocessor controller configured to control the timing and sequence of the magnetic pulse generation and the sensor data sample and hold process.

A head mounted magnetic resonance compatible apparatus which increases the ability to detect ferromagnetic objects by scanning for magnetic fields produced by those ferromagnetic objects themselves and by increasing the magnetization of the ferromagnetic objects while also not exposing the personnel associated with the ferromagnetic objects, to unsafe levels of magnetic fields, or to magnetic fields which exceed recognized safety levels, existing in the orbit of the eye the magnetic resonance compatible apparatus including:

• at least one coil configured to generate a magnetic field positioned in the area of the object to be detected;
• an electrical energy storage capacitor bank capable of quickly releasing the stored energy;
• a high speed, high current electronic switch capable of quickly transferring the stored energy from the capacitor bank to the coil thereby producing in the coil a short duration, single polarity magnetic field pulse;
• a sample and hold circuit capable of acquiring magnetic field sensor data during periods when the pulsed magnetic field is not present;
• and
• a microprocessor controller configured to control the timing and sequence of the magnetic pulse generation and the sensor data sample and hold process.