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Demagnetizer
This quasi-lab based instrument is offered in two variants covering powers up to 1000 Oersteds and powers up to 1500 Oersteds. The sample is "tumbled" in two axes within the specified field strength to ensure non directional magnetizing of the samples. An optional add-on to prevent RRM (Rotational Remanent Magnetizm) is an option to reverse rotation of the tumbling mechanism where this is needed.
This machine enables rocks to be demagnetized by the alternating field method. The electronically-controlled field has a peak value of up to 1000 oersted (0.1 T) at 180 Hz. The rock sample (1" (25.4mm) dia., up to 1" (25.4mm) long) is held in a 2-axis tumbler. The demagnetizer coil is shielded by a triple-walled mumetal bucket shield. The demagnetizer consumes only 700 watts, so that it may be used in hotel rooms.
Demagnetizer Specification:
Specimen size: Up to 1" x 1" (2.54cm x 2.54cm) cylindrical specimen. Other shapes can be accomodated.
Demagnetization Field: Up to 1500 Oersteds (0.15T) for the high powered version and up to 1000 Oersteds (0.10T) for the low powered version.
Power consumption: 700W
Unit Size: 160mm x 320mm x 910mm (without cooling system)
Unit Weight: 50kg
View of Demagnetizer
Demagnetizer showing tumbler reversal unit and vacuum cooling system
