Gradient Magnetometer Online Controller


This project investigated a Lorentz-force excited microstructure that can simultaneously detect multiple gradient magnetic field components. The structure enables the measurement of static and alternating magnetic field. Rapid prototyping technique and 3D-printing of aluminum and acrylic plastic was chosen to investigate the microstructure design before fabrication with traditional MEMS processes. A current conducting path onto the device enables Lorentz force excitation of deflectable masses. Hereby, a perpendicular magnetic field can be measured and a gradient field calculated, deducing accurate information of the field components at the sensor’s head. This miniaturised gradiometer is capable of detecting and differentiating between gradient fields, homogeneous fields and gradient fields superimposed with a homogeneous field by measuring the magnetic flux density simultaneously at two points in space. 


Duration 01/01/2017 - 30/06/2018
Funding Sonstige
Program aws Wissenstransferzentren und IPR-Verwertung

Department for Integrated Sensor Systems

Center for Micro and Nano Sensors

Principle investigator for the project (Danube University Krems) Mag. Mag. Dr. Michael Stifter



Kahr, M.; Stifter, M.; Steiner, H.; Hortschitz, W.; Kovacs, G.; Kainz, A.; Schalko, J.; Keplinger, F. (2018). Characterisation of a Quadrupol Magnetic Field Configuration with a Lorentz Force based MOEMS Gradiometer . IEEE, Conference Proceedings IEEE Sensors2018

Kahr, M. (2017). Design and Characterisation of 3D-Printed Magnetic Field Sensors. Wien


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Accent Innovation Award 2018, TFZ Wiener Neustadt, Österreich, 12/10/2018

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Defensio (Diplomarbeit), 17/11/2017

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