A Multi-Function Kappabridge for High Precision Measurement of the AMS and the Variations of Magnetic Susceptibility with Field, Temperature and Frequency

  • Jiří Pokorný
  • Petr Pokorný
  • Petr Suza
  • František HroudaEmail author
Part of the IAGA Special Sopron Book Series book series (IAGA, volume 1)


A new MFK1-FA Kappabridge is introduced that precisely measures the magnetic susceptibility of rocks and the anisotropy of susceptibility. The instrument has the following features: separation of the in-phase (real) and out-of-phase (imaginary) components, auto-ranging and auto-zeroing, automated measurement of the field variation of the bulk susceptibility, AMS measurements using the spinning specimen method, built-in circuitry for controlling the non-magnetic furnace (CS-4) and cryostat (CS-L), full instrument control by an external computer, sophisticated hardware and software diagnostics. Examples are shown to illustrate the capability of the instrument for rock magnetic and palaeomagnetic research.


Magnetic Mineral Bulk Susceptibility Susceptibility Increase External Computer Paramagnetic Mineral 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



Drs. Martin Chadima, Jaroslav Kadlec, Jeremie Lehmann, Zdeňka Petáková and Carsten Vahle are thanked for providing us with specimens illustrating the abilities of the MFK1-FA Kappabridge.


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Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  • Jiří Pokorný
    • 1
  • Petr Pokorný
    • 1
  • Petr Suza
    • 1
  • František Hrouda
    • 1
    • 2
    Email author
  1. 1.AGICO Inc.BrnoCzech Republic
  2. 2.Institute of Petrology and Structural Geology, Charles UniversityPrahaCzech Republic

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