Software:

• Linux software by 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 The original manual operation has been replaced by a simple (currently experimental) stepping motor controlled automation.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.

Sensitivity:

                                           100 µT           400 µT
             100 Hz :              10e-5             2x10e-6
             1000 Hz :           10e-6             2x10e-7
             10000 Hz :        10e-7             2x10e-8

Application:

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

Sample types:

• cubic or cylindrical samples with up to 10 ccm volume.

Download:

• VFSM user manual (PDF)