Characterization and Simulation of a Magnetized Sample

Linnert M, Lerch R, Sutor A, Rupitsch S (2017)

Publication Language: English

Publication Type: Conference contribution, Conference Contribution

Publication year: 2017

Pages Range: 424-428

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

Event location: Nürnberg

DOI: 10.5162/sensor2017/C8.4

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.

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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.

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