epstein frame

Epstein frame comprises a primary and a secondary winding.

The manufacturers of the instrument claim that its measurement uncertainty is lower than 5% (as referred to results from Epstein frame).

During the measurement the Epstein frame behaves as an unloaded transformer.

Magnetic properties of electrical steels are tested using the internationally standardised Epstein frame method.

A new Epstein frame for core loss measurements at high frequencies and high flux densities.

Epstein frame or Epstein square is a standardised measurement device for measuring the magnetic properties of soft magnetic materials, especially used for testing of electrical steels.

It has been developed for quick assessment of power loss in electrical steel sheet without the need for cutting and annealing, as it is the case for standardised methods like Epstein frame.