Characterization and Simulation of a Magnetized Sample

Conference contribution
(Conference Contribution)


Publication Details

Author(s): Linnert M, Lerch R, Sutor A, Rupitsch S
Editor(s): AMA Service GmbH
Publication year: 2017
Conference Proceedings Title: PROCEEDINGS – AMA Conferences 2017 AMA Conferences 2017 Nuermberg Exhibition Centre, Germany 30.5. – 1.6.2017 SENSOR 2017 18th International Conference on Sensors and Measurement Technology IRS2 2017
Pages range: 424-428
Language: English


Abstract


For several decades, magnetic sensors have been exploiting the nonlinear relation between the mag-netic field strength and the magnetic flux density. Whereas strong saturation effects were most relevant in the past, today energy consumption of modern sensors plays an increasingly important role. Recent semihard magnetic materials concern this issue by retaining a significant magnetic flux density even when all excitation currents are turned off. Nevertheless, in contrast to classical hard magnets, it is relatively easy to commutate them. With sensor development cycles becoming shorter, there is an in-creasing demand for accurate numerical models concerning hysteresis. In this contribution, we present a new combination of scalar and vector material characterization techniques to compute the remanent magnetic field of a magnetized sample by static finite element (FE) simulations. Vacuumschmelze offers a suitable semihard magnetic material with a coecivity field around 2kA/m that is available as thin stripes. In a first step, the Sensorvac material will be characterized to obtain meaningful material properties required for simulations. With material parameters having been identified, the remanent magnetic field of the magnetized sample will be computed. As it is revealed, simulation results coincide very well with laboratory measurements. In future, the model can be applied to design complex sensors.



FAU Authors / FAU Editors

Lerch, Reinhard Prof. Dr.-Ing.
Lehrstuhl für Sensorik
Linnert, Michael
Lehrstuhl für Sensorik
Rupitsch, Stefan PD Dr.
Lehrstuhl für Sensorik
Sutor, Alexander Dr.-Ing.
Lehrstuhl für Sensorik


How to cite

APA:
Linnert, M., Lerch, R., Sutor, A., & Rupitsch, S. (2017). Characterization and Simulation of a Magnetized Sample. In AMA Service GmbH (Eds.), PROCEEDINGS – AMA Conferences 2017 AMA Conferences 2017 Nuermberg Exhibition Centre, Germany 30.5. – 1.6.2017 SENSOR 2017 18th International Conference on Sensors and Measurement Technology IRS2 2017 (pp. 424-428). Nürnberg, DE.

MLA:
Linnert, Michael, et al. "Characterization and Simulation of a Magnetized Sample." Proceedings of the Sensor 2017, Nürnberg Ed. AMA Service GmbH, 2017. 424-428.

BibTeX: 

Last updated on 2018-19-10 at 14:20