Prof. Dr.-Ing.
Lead of projects B1, B5, Z2
Prof. Dr.-Ing.
Lead of project B1
Role within the Collaborative Research Centre
As can be deduced from the working program, this project provides analogue signal processing and conditioning as the sole project. It complements the hardware of the various kinds of ME sensors under investigation with the required electronic circuits in order to facilitate their practical application. It therefore provides the indispensable link between bare sensor hardware and subsequent digital signal processing. It also deals with an important part in measurement system design, required for bringing the ME sensors to application in biomagnetic diagnostics.
A1 :Investigation of sensor noise performance.
A2 :Sensor system noise analysis. Which noise sources are present?
A3 :Noise analysis of multimode sensors with Δf-sensing.
A4 :Investigation of ΔE-sensor system noise with respect to applied signals and operation of sensor electronics.
A5 :Modeling of noise behavior of piezotronic sensor systems and associated electronics.
A7 :Theoretical modeling of operating point and noise performance of electrically modulated sensor systems and dedicated analogue signal processing electronics for electric frequency conversion (EFC).
A8 :Transfer of noise models to be integrated into the more general multiscale numerical modeling of ME sensor systems in order to accurately predict the limit of dectection (LOD).
B2 :Definition of the optimal interface between analogue and digital processing. Combined analogue and digital signal processing, including iterative improvement of measurement performance through successive application of digitally derived correction signals in the analogue domain.
B4 , B5 , B6 :Adaptation of system front-ends (e.g. magnetic frequency conversion [MFC]) and small sensor arrays (gradiometers, tuning fork) to the requirements of biomedical detection systems. Receiving of test results and feedback in order to facilitate the development of suitable measurement systems after transfer of mature subsystems to Z2 .
B7 :Support in sensor electronics for advanced localization of magnetic particle distributions. Analogue signal processing.
Z1 :Reception of sensors for application in non-standard MFC systems and small sensor arrays. Feedback of measurement results in order to arrive at highly performant sub-systems and frontends.
Z2 :Transfer of mature research results with respect to ME sensor system electronics for biomedical application, in particular systems with MFC and small arrays for further development, refinement for duplication and possible inclusion in biomedical systems.
F1 “Modeling” on the noise models of the various ME sensor systems and in the focus group F2 “Sensor Concepts” on system aspects of magnetic frequency conversion (MFC) and electric frequency conversion (EFC) as well as small sensor arrays.
Project-related Publications
P. Durdaut, E. Rubiola, J.-M. Friedt, C. Müller, B. Spetzler, C. Kirchhof, D. Meyners, E. Quandt, F. Faupel, J. McCord, R. Knöchel, M. Höft, Fundamental Noise Limits and Sensitivity of Piezoelectrically Driven Magnetoelastic Cantilevers. Journal of Microelectromechanical Systems (2020). https://doi.org/10.1109/JMEMS.2020.3014402
B. Spetzler, C. Kirchhof, J. Reermann, P. Durdaut, M. Höft, G. Schmidt, E. Quandt, F. Faupel, Influence of the quality factor on the signal to noise ratio of magnetoelectric sensors based on the delta-E effect. Appl. Phys. Lett. 114, 183504 (2019). https://doi.org/10.1063/1.5096001
P. Durdaut, A. Kittmann, A. Bahr, E. Quandt, R. Knöchel, M. Höft, Oscillator Phase Noise Suppression in Surface Acoustic Wave Sensor Systems. IEEE Sensors Journal, vol. 18, no. 12, pp. 4975-4980 (2018). http://dx.doi.org/10.1109/JSEN.2018.2832289
S. Salzer, V. Röbisch, M. Klug, P. Durdaut, J. McCord, D. Meyners, J. Reermann, M. Höft, R. Knöchel, Noise Limits in Thin-Film Magnetoelectric Sensors With Magnetic Frequency Conversion. IEEE Sensors Journal, vol. 18, no. 2, pp. 596-604 (2018). http://dx.doi.org/10.1109/JSEN.2017.2776039
A. Kittmann, P. Durdaut, S. Zabel, J. Reermann, J. Schmalz, B. Spetzler, D. Meyners, N. X. Sun, J. McCord, M. Gerken, G. Schmidt, M. Höft, R. Knöchel, F. Faupel, E. Quandt, Wide Band Low Noise Love Wave Magnetic Field Sensor System. Scientific Reports, vol. 8, no. 278 (2018). http://dx.doi.org/10.1038/s41598-017-18441-4
P. Durdaut, J. Reermann, S. Zabel, C. Kirchhof, E. Quandt, F. Faupel, G. Schmidt, R. Knöchel, M. Höft, Modeling and Analysis of Noise Sources for Thin-Film Magnetoelectric Sensors Based on the Delta-E Effect. IEEE Transactions on Instrumentation and Measurement, vol. 66, no. 10, pp. 2771-2779 (2017). http://dx.doi.org/10.1109/TIM.2017.2709478
P. Durdaut, V. Penner, C. Kirchhof, E. Quandt, R. Knöchel, M. Höft, Noise of a JFET Charge Amplifier for Piezoelectric Sensors. IEEE Sensors Journal, vol. 17, no. 22, pp. 7364-7371 (2017). http://dx.doi.org/10.1109/JSEN.2017.2759000
J. Reermann, P. Durdaut, S. Salzer, T. Demming, A. Piorra, E. Quandt, N. Frey, M. Höft, G. Schmidt, Evaluation of Magnetoelectric Sensor Systems for Cardiological Applications. Measurement (Elsevier), ISSN 0263-2241 (2017). https://doi.org/10.1016/j.measurement.2017.09.047
J. Reermann, C. Bald, P. Durdaut, A.Piorra, D. Meyners, E. Quandt, M. Höft, G. Schmidt, Adaptive mehrkanalige Geräuschkompensation für magnetoelektrische Sensoren. Proc. DAGA, Kiel, Germany , open access (2017).
P. Durdaut, S. Salzer, J. Reermann, V. Röbisch, J. McCord, D. Meyners, E. Quandt, G. Schmidt, R. Knöchel, M. Höft, Improved Magnetic Frequency Conversion Approach for Magnetoelectric Sensors. IEEE Sensors Letters, vol. 1, no. 3 (2017). http://dx.doi.org/10.1109/LSENS.2017.2699559
P. Durdaut, S. Salzer, J. Reermann, V. Röbisch, P. Hayes, A. Piorra, D. Meyners, E. Quandt, G. Schmidt, R. Knöchel, M. Höft, Thermal-Mechanical Noise in Resonant Thin-Film Magnetoelectric Sensors. IEEE Sensors Journal, vol. 17, no. 8, pp. 2338-2348 (2017). http://dx.doi.org/10.1109/JSEN.2017.2671442
S. Salzer, P. Durdaut, V. Röbisch, D. Meyners, E. Quandt, M. Höft, R. Knöchel, Generalised Magnetic Frequency Conversion for Thin Film Laminate Magnetoelectric Sensors. IEEE Sensors Journal, vol. 17, no. 5, pp. 1373-1383 (2017). http://dx.doi.org/10.1109/JSEN.2016.2645707
J. Reermann, C. Bald, S. Salzer, P. Durdaut, A. Piorra, D. Meyners, E. Quandt, M. Höft, Gerhard Schmidt, Comparison of Reference Sensors for Noise Cancellation of Magnetoelectric Sensors. IEEE Sensors 2016 , Orlando (2016). DOI: 10.1109/ICSENS.2016.7808758
E. Yarar, S. Salzer, V. Hrkac, A. Piorra, M. Höft, R. Knöchel, L. Kienle, E. Quandt, Inverse Bilayer Magnetoelectric Thin Film Sensor. Appl. Phys. Lett. 109 , 022901 (2016). http://dx.doi.org/10.1063/1.4958728
E. Yarar, S. Salzer, V. Hrkac, A. Piorra, M. Höft, R. Knöchel, L. Kienle, E. Quandt, Inverse bilayer magnetoelectric thin film sensor, Applied Physics Letters. Vol. 109, Issue 2 (2016). https://doi.org/10.1063/1.4958728
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The project deals with analogue signal processing and conditioning for the various kinds of magnetoelectric sensors systems under investigation. Since the lowest possible limit of detection must be reached, defined by the signal-to-noise ratio approaching one, careful theoretical noise analysis and modeling of the entire sensor front-end as well as optimal low-noise system hardware conception and design is required, comprising amplifiers, possible frequency conversion circuits, and analogue-to-digital conversion, including adaptation to amplitude dynamics and varying frequency bands.