Magnetic Field cancellation systems
Stefan Mayer MR-3 magnetic field cancellation system

MR-3 field cancellation system

MR-3 Magnetic Field Cancellation systems from Stefan Mayer

Continuous real-time compensation DC to ~1 kHz, typ. 40 dB attenuation at 50/60 Hz, simple rugged design, fast & easy setup, alarm functions.

FAST option extends compensation to 4 kHz

Ideal for SEM/TEM installations in noisy environments, in use at hundreds of sites worldwide

NEW! Two new MR-3 variations!
There is a version of the MR-3 designed for cancellation of remnant magnetic fields inside magnetically shielding rooms used for SQUID and OPM MEG systems. This uses external coils that can be easily added to most existing MSRs.
There is also a version of the MR-3 with two fluxgate sensors that can be mixed together to cancel magnetic fields with significant gradients.

MK-1 field cancellation system

Single axis magnetic field cancelling system for MRI scanners and biomagnetic applications. This system is used when the magnetic field sensor cannot be placed within the shielded volume. For example, in MRI applications the sensor is usually installed outside of the shielding room because of the MRI scanner's high fringe field.

    Simultaneous cancelling of quasi-static (DC to 10 Hz) and AC magnetic field
    Band pass filters for 2 fixed AC frequencies (16.7 and 50 Hz or custom)
    Fluxgate magnetic field sensor with sub-nanotesla resolution
    Can be equipped with up to 3 sensors and filters
    Gain and phase separately adjustable for different frequencies
    3-axis version available (MK-3)

Stefan Mayer MK-1 magnetic field cancellation system
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