The study and exploitation of the relations between magnetic properties and the microstructures of steel and other materials is the core of RINA Magnetic Measurement Laboratory.
Our research activity is mainly devoted to the development of new electrical steel products and it works in tight collaboration with other facilities like the Heat Treatments Laboratory and the Pilot Treatment Line, which represents the final experimental level before transferring this technology to industrial production.
The Magnetic Measurement Laboratory is respectively equipped to characterise grain oriented and non-oriented electrical steels in terms of standard and magnetostriction properties.
This section is equipped with EPSTEIN gauges and Single Sheet Tester (SST 500x500), working in accordance with the international standard IEC 60404-2 and IEC 60404-3. Another SST (BSD 280) is mainly used for research.
These instruments can work in the polarization range J=0.1÷2 T up to a magnetic field H =20000 A/m). The work frequency range is 5÷400 Hz for the EPSTEIN gauge and 5÷150 Hz for both Single Sheet Testers.
This second section is equipped with a prototypal experimental facility used to evaluate the magnetostriction and its contribution to acoustic transformer noise. This equipment can also work with a dynamic spectrum analyser in order to perform the harmonic analysis of magnetostriction signals.
Typical features of the apparatus are: