Magnon Variable Field Susceptibility Meter VFSM

Linux software: N.R.Nowaczyk.

Analytical performance:

Measurement of magnetic susceptibility of discrete samples versus field and/or frequency. The original manual operation has been replaced by a simple (currently experimental) stepping motor controlled automation.

NOTE: The mains frequency (Germany: 50 Hz) and its multiples have to be avoided! Thus, useful frequencies are f = n*50+25 Hz.


100 µT400 µT
100 Hz : 10e-5100 Hz : 2x10e-6
1000 Hz : 10e-61000 Hz : 2x10e-7
10000 Hz : 10e-710000 Hz : 2x10e-8

VFMS Noise (pdf)


cubic or cylindrical samples with up to 10 ccm volume.


Rock magnetic investigations of terrestrial, lacustrine or marine sediment sequences, or hard rocks.


Norbert Nowaczyk
Group Leader
Dr. habil. Norbert Nowaczyk
Climate Dynamics and Landscape Evolution
Building C , Room 321
14473 Potsdam
+49 331 288-1369