Magneization curve approximation
Magnetic properties of ferromagnetic materials vary with temperature, and the magnetization or B-H curve (also called hysteresis curve) may be different at different temperatures. At the temperatures above the Curie point any material becomes paramagnetic and the curve transforms to a straight line. B-H curves for magnetic materials are provided by the magnetic material vendors, who publish datasets for several temperatures. However, sometimes the magnetic properties are needed for temperatures which are not directly listed - so some interpolation between the datasets may be required.
This tool allows entering several B-H datasets for various temperatures, and generates the interpolated B-H curve for any temperature specified. Upper end of the temperature range is always at the Curie point. If the requested temperature is outside the entered temperature range – the nearest end-of-range temperature datasets are used. For temperatures within the range the data are linearly interpolated using the temperatures below and above the required temperatures.