A8.1 - A Preisach Based Model for the Characterisation of Magnetic Hysteresis
- Event
- SENSOR+TEST Conferences 2009
2009-05-26 - 2009-05-28
Congress Center Nürnberg - Band
- Proceedings SENSOR 2009, Volume II
- Chapter
- A8 - Magnetic Sensors III
- Author(s)
- A. Sutor, R. Lerch - Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
- Pages
- 65 - 70
- DOI
- 10.5162/sensor09/v2/a8.1
- ISBN
- 978-3-9810993-5-5
- Price
- free
Abstract
In this paper we present a model for hysteretic nonlinearities with non-local memories. This model can be used to describe hysteretic material behavior. Common applications are ferromagnetic or ferroelectric materials. Our model consists of an analytic function and a Preisach operator. Furthermore, we define a new Preisach weight function and introduce a method for the identification of the model parameters. Altogether, five parameters define the weight function and another two parameters are needed for the analytic function. With these seven parameters the model can be adapted very well to measured material curves. The model parameters are customized to a set of symmetric hysteresis curves of a soft magnetic material. After that, non-symmetric curves like the virgin curve are predicted very well by the model. It is especially useful, if forced magnetization, that appears beyond technical saturation, plays a role.