Electrical steel tester MPG 200

magnetic fieldpower lossmagnetic properties

• Determination of the magnetic properties of electrical steel and other soft magnetic materials • Free configuring with specific measuring coil systems • Parallel connection of up to12 measuring coil systems • Fully digitalized data documentation • Measuring coil systems and evaluation according to IEC 60404 ff and ISO ASTM for measurement with Epstein frame and sheet measuring coil • Very fast measurements • Easy to operate • Automatic coil changeover for convenient operation • Module for measurement of rings, ring strip cores, stacked laminations, etc. • BROCKHAUS® MPG Expert software for measurement, presentation and integration into QM systems • Software options: free curves, DC bias offset, pulse-width modulation signals, higher harmonics Operating principle In a measuring coil a material sample is exposed to a defined magnetic field and magnetic flux is created in the sheet steel. The required electric current is supplied by a power amplifier. The current is measured by means of a temperature-stable, low inductivity precision resistor (shunt) or via field coils. Determination of the polarization is by sampling of the induced voltage, conversion and integration. Parallel recording of the H and J sizes with separate analogue-digital converters guarantees absolutely simultaneous measurement. From the differentiated and integrated parameters the processor system can calculate all the above-mentioned values. Measurement is by means of sinusoidal polarization. By using a control algorithm the secondary voltage can be checked and constantly regulated in accordance with the nominal value.