Magnetic Characterization of Transformer Materials

Precision loss measurement of sheet iron and ferrite cores with a high signal frequency: Exact, easy and in real-time.

Precision loss power measurement of sheet iron and ferrite cores with high signal frequency: exact, easy and in real-time! With the ZES ZIMMER – A Rohde & Schwarz Company – precision power analyzer LMG611 and other LMG models it is possible to obtain the magnetic characteristics of transformer-cores and coil materials besides a precise measurement of power loss.

Those could be the peak values of the magnetic flux, the magnetic field strength and the permeability of a core which are determined at low and at high frequencies. For the quality control of magnetic materials completely wound cores can be used.

Many measuring proceedings require sinusoidal field strength or flux which require expensive and complicated signal sources. Since the main point of interest is especially the saturation interval, there will be a high demand for the source in this range. It is more elegant and cheaper to use "intelligent" measuring equipment and allow arbitrary curve forms of the voltage and the current and to apply some mathematics. In doing so low-cost power sources can be used. Even the line voltage with its high harmonic distortion can be used.