Applied Scientific Research, Section B

, Volume 6, Issue 1, pp 101–104 | Cite as

A rapid method for measuring coercive force and other ferromagnetic properties of very small samples

  • G. W. Van Oosterhout


A description is given of a method for the quantitative investigation of the permanent magnetic properties, especially the coercive force, of samples of about one milligram. The method is based essentially on the measurement of the alternating e.m.f., generated by letting the sample vibrate in a searchcoil, with a sensitive voltmeter. For the measurement of magnetic moments the instrument has to be calibrated. It is pointed out how this can be done. The time needed for a measurement is about two minutes.


Coercive Force Input Impedance Ferromagnetic Property Search Coil Measuring Coercive 


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    Bozorth, R.M., Ferromagnetism, D. van Nostrand, New York, Toronto, London, 1951.Google Scholar
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    Elenbaas, W., Z. Phys.76 (1932) 829.CrossRefADSGoogle Scholar
  3. 3).
    Bühl, A. and F. Coeterier, Phys. Z.33 (1932). 773, 904.Google Scholar

Copyright information

© Martinus Nijhoff 1957

Authors and Affiliations

  • G. W. Van Oosterhout
    • 1
  1. 1.Philips Research Laboratories N.V. Philips’ GloeilampenfabriekenEindhovenNetherlands

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