Magnetics Business & Technology - January/February 2021 - 24

PRODUCT NEWS

Superconducting Magnet Systems from Cryomagnetics Delivered to Research Labs
The most recent models of its Spinner Magnetometers, the
JR-6, are the world's most sensitive and accurate instrument for
measuring remanent magnetization of rocks based on classical,
non-cryogenic, principle, says AGICO. A super sensitive phaselocked dynamo, it allows the user to measure magnetic remanence in the range from 2.4 E-6 up to 1.25 E5 A/m.

Czech instrument maker AGICO continues its tradition of innovation for the magnetic measurement of rock and environmental
samples. More than thirty years of such effort have placed its
scientific instruments for rock magnetism, paleomagnetism and
environmental magnetism in laboratories on all continents including Antarctica.

Other instruments in the company's portfolio are its LDA Series
of alternating field demagnetizers which can be coupled with
anhysteretic pulse magnetizers, important in rock magnetic
research when demagnetization or artificial magnetization is
needed. Applicability is manifold including paleomagnetic stepwise demagnetization, structural studies based on anisotropy
of magnetic remanence, and environmental research studying
viscous magnetization.

The company has seen its Kappabridges become a worldwide
standard for measuring magnetic susceptibility. A measure of
how much a material will become magnetized in an applied magnetic field, magnetic susceptibility is a key parameter to describe
and analyze rocks, quantifying the content of magnetic particles
in a sample.
The most recent models are MFK2, shown above, and KLY5.
Measuring options include the variation of magnetic susceptibility as a function of magnetizing field, operating frequency and
temperature, and, most recently, the precise decomposition of
magnetic susceptibility signal into its in-phase and out-of-phase
components. For assessment of the inner structure of material,
mostly rocks, they include a fully automatic setup for convenient
and fast measurements of anisotropy of magnetic susceptibility.
Technically speaking, Kappabridges are based on fully automatic inductive bridges equipped with automatic zeroing system
and compensation for the thermal drift. Their sensitivity reaches
20E-9 SI units and measuring range is from zero up to approx.
1 SI unit. Alternating magnetizing field can be set from 2 up to
700 A/m and, depending on Kappabridge model, there are one
or three operating frequencies, approximately 1, 4 and 16 kHz.
If equipped with accessory temperature control units, Kappabridges can measure variations of magnetic susceptibility in a
temperature range from -196 to 700°C.

Magnetics Business & Technology * January/February 2021

Based in Brno, Czech Republic, AGICO (Advanced Geoscience
Instruments Company) dates its instrument making tradition back
to the 1960's when the first models of Kappabridges and Spinner
Magnetometers were developed by its predecessor, Geofyzika
company. For more info, see www.agico.com.

www.MagneticsMag.com

http://www.agico.com http://www.MagneticsMag.com

Magnetics Business & Technology - January/February 2021

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