Dr Michael Ruppert

Dr Michael Ruppert

Research Associate

School of Electrical Engineering and Computing

Career Summary

Biography

Michael Ruppert received the Dipl.-Ing. Degree in automation technology in production, with a specialization in systems theory and automatic control, from the University of Stuttgart, Germany, in 2013. In 2017, he received the Ph.D. degree with Excellence Award in electrical engineering from The University of Newcastle, Australia where he is now a Postdoctoral Research Fellow with the School of Electrical Engineering and Computing. As a Visiting Researcher, he was with the Mechanical Engineering Department, University of Texas at Dallas, USA.

Dr Ruppert's research topics are situated within the area of Micro Precision Mechatronics and as such bridge the gap between classical electrical / control engineering and emerging applications in the field of microelectromechanical
systems, high performance microscopy and nanotechnology. His recent work has focused on the development of estimation, control and self-sensing approaches for microelectromechanical (MEMS) systems such as piezoelectric microcantilevers and nanopositioning systems for multifrequency and single-chip atomic force microscopy.

Dr Ruppert received the Academic Merit Scholarship from the University of Stuttgart, the Baden-Württemberg Scholarship, and held Postgraduate Research Scholarships with the University of Newcastle and with the CSIRO, Clayton, VIC, Australia. Dr Ruppert's research has been recognized with Best Conference Paper Finalist Awards at the 2018 International Conference on Manipulation, Automation and Robotics at Small Scales (MARSS) and a the 2013 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM). In 2018, the article Multimode Q Control in Tapping-Mode AFM: Enabling Imaging on Higher Flexural Eigenmodes published in IEEE Transactions on Control Systems Technology received the 2018 IEEE TCST Outstanding Paper Award.

Qualifications

  • Doctor of Philosophy, University of Newcastle
  • Master of Science, University of Stuttgart - Germany

Keywords

  • Atomic Force Microscopy
  • Control Systems
  • Mechatronics
  • Microelectromechanical systems (MEMS)
  • Nanotechnology
  • Piezoelectric Transducer
  • Signal Processing
  • Smart Structures

Languages

  • German (Mother)
  • English (Fluent)
  • French (Working)

Professional Experience

UON Appointment

Title Organisation / Department

Academic appointment

Dates Title Organisation / Department
1/8/2015 - 1/8/2016 Visiting Researcher

Fabrication of piezoelectric microcantilevers and nanotips in the clean room. Research and development of a MEMS-based on-chip atomic force microscope. Analysis of process stability of a scanning tunneling microscope enabled nanolithography in collaboration with industry.Planning and setup of the Laboratory for Dynamics and Control of Nanosystems (LDCN).

 University of Texas Dallas
Erik Jonsson School of Engineering and Computer Science
United States

Awards

Distinction

Year Award
2018 Higher Degree by Research Excellence
Faculty of Engineering and Built Environment - The University of Newcastle (Australia)

Honours

Year Award
2019 Interview in IEEE Control Systems
IEEE Control Systems

Prize

Year Award
2016 FEBE Postgraduate Research Prize
Faculty of Engineering and Built Environment - The University of Newcastle (Australia)
2014 FEBE Postgraduate Research Prize
Faculty of Engineering and Built Environment - The University of Newcastle (Australia)

Research Award

Year Award
2019 Best Conference Paper Award
International Conference on Manipulation, Automation and Robotics at Small Scales (MARSS)
2018 IEEE Transactions on Control Systems Technology Outstanding Paper Award
IEEE Control Systems Society
2018 Best Conference Paper Finalist Award
International Conference on Manipulation, Automation and Robotics at Small Scales (MARSS)
2013 Best Student Conference Paper Finalist Award
IEEE/ASME International Conference on Advanced Intelligent Mechatronics, AIM

Scholarship

Year Award
2014 OCE PhD CSIRO Scholarship
CSIRO - Commonwealth Scientific and Industrial Research Organisation
2013 UNIPRS and UNRSC 50-50 Scholarship
The University of Newcastle
2012 Baden-Württemberg Scholarship
Baden-Württemberg Stiftung
2008 Academic Merit Scholarship
University of Stuttgart

Invitations

Committee Member

Year Title / Rationale
2019 MARSS Program Committee
2018 IEEE Control Systems Society Conference Editorial Board
Associate Editor for ACC2019

Organiser

Year Title / Rationale
2019 Invited Session at IEEE International Conference on Manipulation, Automation and Robotics at Small Scales (MARSS), Helsinki, Finland
Design and Control of Micro and Nano Precision Mechatronic Systems I & II
Lead Organizer of Invited Session and Chair
2018 Invited Session at IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM), Auckland, New Zealand
Design and Control of Micro and Nano Precision Mechatronic Systems
Lead Organizer of Invited Session and Chair
2017 Invited Session at IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM), Munich, Germany
Design and Control of Micro and Nano Precision Mechatronic Systems
Lead Organizer of Invited Session and Chair

Speaker

Year Title / Rationale
2018 Invited Seminar at EPFL, Lausanne, Switzerland
Integrated Sensing, Estimation and Control in Multifrequency Atomic Force Microscopy
2018 Invited Seminar at TNO, Delft, The Netherlands
Integrated Sensing, Estimation and Control in Multifrequency Atomic Force Microscopy
2017 Invited Seminar of the IEEE WA joint EDS/SSCS/IPS Chapter at UWA, Perth, Australia
Self-Sensing, Estimation and Control in Multifrequency Atomic Force Microscopy
2016 Invited Lecture at UTD, Dallas, USA
Kalman Filtering Applied to Multifrequency Atomic Force Microscopy

Grant Reviews

Year Grant Amount
2018 ARC Discovery Project DP19
Aust Competitive - Commonwealth - 1CS, Aust Competitive - Commonwealth - 1CS
Detailed Assessor		 $450,000

Prestigious works / other achievements

Year Commenced Year Finished Prestigious work / other achievement Role
2017 2017 New Paradigm in Microscopy: Atomic Force Microscope on a Chip IEEE Spectrum Magazine Author

Teaching

Code Course Role Duration
TM1 & TM2 Engineering Mechanics I and II
University of Stuttgart 		Tutor 1/1/2008 - 31/12/2008
ELEC4410 Advanced Control System Design
The University of Newcastle
ELEC4410 examines advanced analysis and design issues in linear feedback control systems. The course provides an in-depth introduction to the fundamental concepts of linear system theory using both transfer function and state equation system descriptions. Emphasis is placed on the design of feedback controllers and state estimators for pole-placement, robust regulation, tracking and disturbance rejection, in the context of real world industrial process applications.		 Tutor 30/7/2013 - 31/12/2013
ELEC4400 Automatic Control
The University of Newcastle

This course treats the basic principles of the automatic control of industrial processes and machines. The emphasis of the subject is on continuous time control, although some introductory material on sequential logic control (or programmable logic control) is included.

 Tutor 1/3/2014 - 30/6/2014
ELEC4400 Automatic Control
The University of Newcastle
This course treats the basic principles of the automatic control of industrial processes and machines. The emphasis of the subject is on continuous time control, although some introductory material on sequential logic control (or programmable logic control) is included.		 Tutor 1/3/2013 - 30/6/2013
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Publications

For publications that are currently unpublished or in-press, details are shown in italics.

Highlighted Publications

Year Citation Altmetrics Link
2016 Ruppert MG, Moheimani SOR, 'Multimode Q Control in Tapping-Mode AFM: Enabling Imaging on Higher Flexural Eigenmodes', IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY, 24 1149-1159 (2016) [C1]
DOI 10.1109/TCST.2015.2478077
Citations Scopus - 26Web of Science - 24
Co-authors Reza Moheimani
2017 Ruppert MG, Fowler AG, Maroufi M, Moheimani SOR, 'On-Chip Dynamic Mode Atomic Force Microscopy: A Silicon-on-Insulator MEMS Approach', JOURNAL OF MICROELECTROMECHANICAL SYSTEMS, 26 215-225 (2017) [C1]
DOI 10.1109/JMEMS.2016.2628890
Citations Scopus - 20Web of Science - 17
Co-authors Reza Moheimani
2017 Ruppert MG, Harcombe DM, Ragazzon MRP, Moheimani SOR, Fleming AJ, 'A review of demodulation techniques for amplitude-modulation atomic force microscopy', BEILSTEIN JOURNAL OF NANOTECHNOLOGY, 8 1407-1426 (2017) [C1]
DOI 10.3762/bjnano.8.142
Citations Scopus - 24Web of Science - 17
Co-authors Reza Moheimani, Andrew Fleming
2017 Ruppert MG, Yong YK, 'Note: Guaranteed collocated multimode control of an atomic force microscope cantilever using on-chip piezoelectric actuation and sensing', Review of Scientific Instruments, 88 (2017) [C1]

The quality (Q) factor is an important parameter of the resonance of the microcantilever as it determines both imaging bandwidth and force sensitivity. The ability to control the ... [more]

The quality (Q) factor is an important parameter of the resonance of the microcantilever as it determines both imaging bandwidth and force sensitivity. The ability to control the Q factor of multiple modes is believed to be of great benefit for atomic force microscopy techniques involving multiple eigenmodes. In this paper, we propose a novel cantilever design employing multiple piezoelectric transducers which are used for separated actuation and sensing, leading to guaranteed collocation of the first eight eigenmodes up to 3 MHz. The design minimizes the feedthrough usually observed with these systems by incorporating a guard trace on the cantilever chip. As a result, a multimode Q controller is demonstrated to be able to modify the quality factor of the first two eigenmodes over up to four orders of magnitude without sacrificing robust stability.

DOI 10.1063/1.4990451
Citations Scopus - 11Web of Science - 8
Co-authors Yuenkuan Yong

Chapter (1 outputs)

Year Citation Altmetrics Link
2020 Ruppert M, Moheimani S, 'Dynamics and Control of Active Microcantilevers', Encyclopedia of Systems and Control, Springer, London, UK (2020) [B1]
DOI 10.1007/978-1-4471-5102-9_184-2
Co-authors Reza Moheimani

Journal article (24 outputs)

Year Citation Altmetrics Link
2021 Seethaler R, Mansour SZ, Ruppert MG, Fleming AJ, 'Position and force sensing using strain gauges integrated into piezoelectric bender electrodes', Sensors and Actuators, A: Physical, 321 (2021) [C1]

This article derives design guidelines for integrating strain gauges into the electrodes of piezoelectric bending actuators. The proposed sensor can estimate the actuator tip disp... [more]

This article derives design guidelines for integrating strain gauges into the electrodes of piezoelectric bending actuators. The proposed sensor can estimate the actuator tip displacement in response to an applied voltage and an external applied tip force. The actuator load force is also estimated with an accuracy of 8% full scale by approximating the actuator response with a linear model. The applications of this work include micro-grippers and pneumatic valves, which both require the measurement of deflection and load force. At present, this is achieved by external sensors. However, this work shows that these functions can be integrated into the actuator electrodes.

DOI 10.1016/j.sna.2020.112416
Co-authors Andrew Fleming
2021 Ruppert MG, Fleming AJ, Yong YK, 'Active atomic force microscope cantilevers with integrated device layer piezoresistive sensors', Sensors and Actuators, A: Physical, 319 (2021)

Active atomic force microscope cantilevers with on-chip actuation and sensing provide several advantages over passive cantilevers which rely on piezoacoustic base-excitation and o... [more]

Active atomic force microscope cantilevers with on-chip actuation and sensing provide several advantages over passive cantilevers which rely on piezoacoustic base-excitation and optical beam deflection measurement. Active microcantilevers exhibit a clean frequency response, provide a path-way to miniturization and parallelization and avoid the need for optical alignment. However, active microcantilevers are presently limited by the feedthrough between actuators and sensors, and by the cost associated with custom microfabrication. In this work, we propose a hybrid cantilever design with integrated piezoelectric actuators and a piezoresistive sensor fabricated from the silicon device layer without requiring an additional doping step. As a result, the design can be fabricated using a commercial five-mask microelectromechanical systems fabrication process. The theoretical piezoresistor sensitivity is compared with finite element simulations and experimental results obtained from a prototype device. The proposed approach is demonstrated to be a promising alternative to conventional microcantilever actuation and deflection sensing.

DOI 10.1016/j.sna.2020.112519
Co-authors Yuenkuan Yong
2020 Moore SI, Ruppert MG, Yong YK, 'AFM Cantilever Design for Multimode Q Control: Arbitrary Placement of Higher Order Modes', IEEE/ASME Transactions on Mechatronics, 25 1389-1397 (2020) [C1]
DOI 10.1109/tmech.2020.2975627
Citations Scopus - 1
Co-authors Yuenkuan Yong
2020 Harcombe DM, Ruppert MG, Fleming AJ, 'A review of demodulation techniques for multifrequency atomic force microscopy', Beilstein Journal of Nanotechnology, 11 76-91 (2020) [C1]
DOI 10.3762/bjnano.8
Citations Scopus - 5Web of Science - 7
Co-authors Andrew Fleming
2020 Wang K, Ruppert MG, Manzie C, Nesic D, Yong YK, 'Adaptive Scan for Atomic Force Microscopy Based on Online Optimization: Theory and Experiment', IEEE Transactions on Control Systems Technology, 28 869-883 (2020) [C1]
DOI 10.1109/TCST.2019.2895798
Citations Scopus - 2Web of Science - 2
Co-authors Yuenkuan Yong
2020 Wang K, Ruppert MG, Manzie C, Ne ic D, Yong YK, 'Scan Rate Adaptation for AFM Imaging Based on Performance Metric Optimization', IEEE/ASME Transactions on Mechatronics, 25 418-428 (2020) [C1]
DOI 10.1109/TMECH.2019.2947203
Citations Scopus - 2Web of Science - 1
Co-authors Yuenkuan Yong
2020 Ruppert MG, Bartlett NJ, Yong YK, Fleming AJ, 'Amplitude noise spectrum of a lock-in amplifier: Application to microcantilever noise measurements', Sensors and Actuators, A: Physical, 312 (2020) [C1]
DOI 10.1016/j.sna.2020.112092
Co-authors Yuenkuan Yong, Andrew Fleming
2020 McCourt LR, Ruppert MG, Routley BS, Indirathankam SC, Fleming AF, 'A comparison of gold and silver nanocones and geometry optimisation for tip-enhanced microscopy', Journal of Raman Spectroscopy, 51 2208-2216 (2020) [C1]

In this article, boundary element method simulations are used to optimise the geometry of silver and gold nanocone probes to maximise the localised electric field enhancement and ... [more]

In this article, boundary element method simulations are used to optimise the geometry of silver and gold nanocone probes to maximise the localised electric field enhancement and tune the near-field resonance wavelength. These objectives are expected to maximise the sensitivity of tip-enhanced Raman microscopes. Similar studies have used limited parameter sets or used a performance metric other than localised electric field enhancement. In this article, the optical responses for a range of nanocone geometries are simulated for excitation wavelengths ranging from 400 to 1000 nm. Performance is evaluated by measuring the electric field enhancement at the sample surface with a resonant illumination wavelength. These results are then used to determine empirical models and derive optimal nanocone geometries for a particular illumination wavelength and tip material. This article concludes that gold nanocones are expected to provide similar performance to silver nanocones at red and near-infrared wavelengths, which is consistent with other results in the literature. In this article, 633 nm is determined to be the shortest usable illumination wavelength for gold nanocones. Below this limit, silver nanocones will provide superior enhancement. The use of gold nanocone probes is expected to dramatically improve probe lifetime, which is currently measured in hours for silver coated probes. Furthermore, the elimination of passivation coatings is expected to enable smaller probe radii and improved topographical resolution.

DOI 10.1002/jrs.5987
Co-authors Andrew Fleming, Sathish Ci
2019 Ruppert MG, Moheimani SOR, '2018 IEEE Transactions on Control Systems Technology Outstanding Paper Award', IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY, 27 463-463 (2019)
DOI 10.1109/TCST.2018.2889911
Co-authors Reza Moheimani
2019 Ruppert MG, Moore S, Zawierta M, Fleming AJ, Putrino G, Yong YK, 'Multimodal atomic force microscopy with optimized higher eigenmode sensitivity using on-chip piezoelectric actuation and sensing', NANOTECHNOLOGY, 30 (2019) [C1]
DOI 10.1088/1361-6528/aae40b
Citations Scopus - 16Web of Science - 11
Co-authors Andrew Fleming, Yuenkuan Yong
2019 Moore SI, Ruppert MG, Yong YK, 'An optimization framework for the design of piezoelectric AFM cantilevers', Precision Engineering, 60 130-142 (2019) [C1]
DOI 10.1016/j.precisioneng.2019.08.005
Citations Scopus - 4Web of Science - 3
Co-authors Yuenkuan Yong
2019 Moore S, Ruppert M, Harcombe D, Fleming A, Yong Y, 'Design and Analysis of Low-Distortion Demodulators for Modulated Sensors', IEEE/ASME Transactions on Mechatronics, 24 1861-1870 (2019) [C1]
DOI 10.1109/TMECH.2019.2928592
Citations Scopus - 3Web of Science - 2
Co-authors Andrew Fleming, Yuenkuan Yong
2018 Harcombe DM, Ruppert MG, Ragazzon MRP, Fleming AJ, 'Lyapunov estimation for high-speed demodulation in multifrequency atomic force microscopy', BEILSTEIN JOURNAL OF NANOTECHNOLOGY, 9 490-498 (2018) [C1]
DOI 10.3762/bjnano.9.47
Citations Scopus - 9Web of Science - 7
Co-authors Andrew Fleming
2018 Ragazzon MRP, Ruppert MG, Harcombe DM, Fleming AJ, Gravdahl JT, 'Lyapunov Estimator for High-Speed Demodulation in Dynamic Mode Atomic Force Microscopy', IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY, 26 765-772 (2018) [C1]
DOI 10.1109/TCST.2017.2692721
Citations Scopus - 14Web of Science - 16
Co-authors Andrew Fleming
2017 Moore SI, Ruppert MG, Yong YK, 'Multimodal cantilevers with novel piezoelectric layer topology for sensitivity enhancement', BEILSTEIN JOURNAL OF NANOTECHNOLOGY, 8 358-371 (2017) [C1]
DOI 10.3762/bjnano.8.38
Citations Scopus - 10Web of Science - 8
Co-authors Yuenkuan Yong
2017 Ruppert MG, Fowler AG, Maroufi M, Moheimani SOR, 'On-Chip Dynamic Mode Atomic Force Microscopy: A Silicon-on-Insulator MEMS Approach', JOURNAL OF MICROELECTROMECHANICAL SYSTEMS, 26 215-225 (2017) [C1]
DOI 10.1109/JMEMS.2016.2628890
Citations Scopus - 20Web of Science - 17
Co-authors Reza Moheimani
2017 Ruppert MG, Harcombe DM, Ragazzon MRP, Moheimani SOR, Fleming AJ, 'A review of demodulation techniques for amplitude-modulation atomic force microscopy', BEILSTEIN JOURNAL OF NANOTECHNOLOGY, 8 1407-1426 (2017) [C1]
DOI 10.3762/bjnano.8.142
Citations Scopus - 24Web of Science - 17
Co-authors Reza Moheimani, Andrew Fleming
2017 Ruppert MG, Yong YK, 'Note: Guaranteed collocated multimode control of an atomic force microscope cantilever using on-chip piezoelectric actuation and sensing', Review of Scientific Instruments, 88 (2017) [C1]

The quality (Q) factor is an important parameter of the resonance of the microcantilever as it determines both imaging bandwidth and force sensitivity. The ability to control the ... [more]

The quality (Q) factor is an important parameter of the resonance of the microcantilever as it determines both imaging bandwidth and force sensitivity. The ability to control the Q factor of multiple modes is believed to be of great benefit for atomic force microscopy techniques involving multiple eigenmodes. In this paper, we propose a novel cantilever design employing multiple piezoelectric transducers which are used for separated actuation and sensing, leading to guaranteed collocation of the first eight eigenmodes up to 3 MHz. The design minimizes the feedthrough usually observed with these systems by incorporating a guard trace on the cantilever chip. As a result, a multimode Q controller is demonstrated to be able to modify the quality factor of the first two eigenmodes over up to four orders of magnitude without sacrificing robust stability.

DOI 10.1063/1.4990451
Citations Scopus - 11Web of Science - 8
Co-authors Yuenkuan Yong
2016 Ruppert MG, Moheimani SOR, 'Multimode Q Control in Tapping-Mode AFM: Enabling Imaging on Higher Flexural Eigenmodes', IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY, 24 1149-1159 (2016) [C1]
DOI 10.1109/TCST.2015.2478077
Citations Scopus - 26Web of Science - 24
Co-authors Reza Moheimani
2016 Ruppert MG, Karvinen KS, Wiggins SL, Moheimani SOR, 'A Kalman Filter for Amplitude Estimation in High-Speed Dynamic Mode Atomic Force Microscopy', IEEE Transactions on Control Systems Technology, 24 276-284 (2016) [C1]

A fundamental challenge in dynamic mode atomic force microscopy (AFM) is the estimation of the cantilever oscillation amplitude from the deflection signal, which might be distorte... [more]

A fundamental challenge in dynamic mode atomic force microscopy (AFM) is the estimation of the cantilever oscillation amplitude from the deflection signal, which might be distorted by noise and/or high-frequency components. When the cantilever is excited at resonance, its deflection is typically obtained via narrow-band demodulation using a lock-in amplifier (LIA). However, the bandwidth of this measurement technique is ultimately bounded by the low-pass filter, which must be employed after demodulation to attenuate the component at twice the carrier frequency. Furthermore, to measure the amplitude of multiple frequency components, such as higher eigenmodes and/or higher harmonics in multifrequency AFM, multiple LIAs must be employed. In this paper, the authors propose the estimation of amplitude and phase using a linear time-varying Kalman filter that is easily extended to multiple frequencies. Experimental results are obtained using square-modulated sine waves and closed-loop AFM scans, verifying the performance of the proposed Kalman filter.

DOI 10.1109/TCST.2015.2435654
Citations Scopus - 25Web of Science - 19
Co-authors Reza Moheimani
2016 Ruppert MG, Moheimani SOR, 'High-bandwidth multimode self-sensing in bimodal atomic force microscopy', Beilstein Journal of Nanotechnology, 7 284-295 (2016) [C1]

Using standard microelectromechanical system (MEMS) processes to coat a microcantilever with a piezoelectric layer results in a versatile transducer with inherent self-sensing cap... [more]

Using standard microelectromechanical system (MEMS) processes to coat a microcantilever with a piezoelectric layer results in a versatile transducer with inherent self-sensing capabilities. For applications in multifrequency atomic force microscopy (MF-AFM), we illustrate that a single piezoelectric layer can be simultaneously used for multimode excitation and detection of the cantilever deflection. This is achieved by a charge sensor with a bandwidth of 10 MHz and dual feedthrough cancellation to recover the resonant modes that are heavily buried in feedthrough originating from the piezoelectric capacitance. The setup enables the omission of the commonly used piezoelectric stack actuator and optical beam deflection sensor, alleviating limitations due to distorted frequency responses and instrumentation cost, respectively. The proposed method benefits from a more than two orders of magnitude increase in deflection to strain sensitivity on the fifth eigenmode leading to a remarkable signal-to-noise ratio. Experimental results using bimodal AFM imaging on a two component polymer sample validate that the self-sensing scheme can therefore be used to provide both the feedback signal, for topography imaging on the fundamental mode, and phase imaging on the higher eigenmode.

DOI 10.3762/bjnano.7.26
Citations Scopus - 27Web of Science - 25
Co-authors Reza Moheimani
2016 Ruppert MG, Harcombe DM, Moheimani SOR, 'High-Bandwidth Demodulation in MF-AFM: A Kalman Filtering Approach', IEEE-ASME TRANSACTIONS ON MECHATRONICS, 21 2705-2715 (2016) [C1]
DOI 10.1109/TMECH.2016.2574640
Citations Scopus - 20Web of Science - 17
Co-authors Reza Moheimani
2014 Karvinen KS, Ruppert MG, Mahata K, Moheimani SOR, 'Direct tip-sample force estimation for high-speed dynamic mode atomic force microscopy', IEEE Transactions on Nanotechnology, 13 1257-1265 (2014) [C1]

We present new insights into the modeling of the microcantilever in dynamic mode atomic force microscopy and outline a novel high-bandwidth tip-sample force estimation technique f... [more]

We present new insights into the modeling of the microcantilever in dynamic mode atomic force microscopy and outline a novel high-bandwidth tip-sample force estimation technique for the development of high-bandwidth z -axis control. Fundamental to the proposed technique is the assumption that in tapping mode atomic force microscopy, the tip-sample force takes the form of an impulse train. Formulating the estimation problem as a Kalman filter, the tip-sample force is estimated directly; thus, potentially enabling high-bandwidth z-axis control by eliminating the dependence of the control technique on microcantilever dynamics and the amplitude demodulation technique. Application of this technique requires accurate knowledge of the models of the microcantilever; a novel identification method is proposed. Experimental data are used in an offline analysis for verification.

DOI 10.1109/TNANO.2014.2360878
Citations Scopus - 13Web of Science - 13
Co-authors Kaushik Mahata, Reza Moheimani
2013 Ruppert MG, Moheimani SOR, 'A novel self-sensing technique for tapping-mode atomic force microscopy', Review of Scientific Instruments, 84 (2013) [C1]
DOI 10.1063/1.4841855
Citations Scopus - 31Web of Science - 27
Co-authors Reza Moheimani
Show 21 more journal articles

Conference (17 outputs)

Year Citation Altmetrics Link
2020 Bem NFSD, Ruppert MG, Yong YK, Fleming AJ, 'Integrated force and displacement sensing in active microcantilevers for off-resonance tapping mode atomic force microscopy', Proceedings of MARSS 2020: International Conference on Manipulation, Automation, and Robotics at Small Scales (2020)

Integrated on-chip actuation and sensing in micro-cantilevers for atomic force microscopy (AFM) allows faster scanning speeds, cleaner frequency responses and smaller cantilevers.... [more]

Integrated on-chip actuation and sensing in micro-cantilevers for atomic force microscopy (AFM) allows faster scanning speeds, cleaner frequency responses and smaller cantilevers. However, a single integrated sensor suffers from cross-coupling between displacements originating from tip-sample forces and direct actuation. This paper addresses this issue by presenting a novel micro-cantilever with on-chip actuation and integrated dual sensing for AFM with application to off resonance tapping modes in AFM. The proposed system is able to measure tip force and deflection simultaneously. A mathematical model is developed for a rectangular cantilever to describe the system and is validated with finite element analysis.

DOI 10.1109/MARSS49294.2020.9307881
Co-authors Yuenkuan Yong, Andrew Fleming
2019 Ragazzon MRP, Messineo S, Gravdahl JT, Harcombe DM, Ruppert MG, 'Generalized lyapunov demodulator for amplitude and phase estimation by the internal model principle', IFAC-PapersOnLine, Vienna, Austria (2019) [E1]
DOI 10.1016/j.ifacol.2019.11.682
Citations Scopus - 1
2019 Ruppert MG, Routley BS, Fleming AJ, Yong YK, Fantner GE, 'Model-based Q factor control for photothermally excited microcantilevers', Proceedings of MARSS 2019: 4th International Conference on Manipulation, Automation, and Robotics at Small Scales, Helsinki, Finland (2019) [E1]
DOI 10.1109/MARSS.2019.8860969
Co-authors Andrew Fleming, Yuenkuan Yong
2019 Harcombe DM, Ruppert MG, Fleming AJ, 'Modeling and noise analysis of a microcantilever-based mass sensor', Proceedings of MARSS 2019: 4th International Conference on Manipulation, Automation, and Robotics at Small Scales, Helsinki, Finland (2019) [E1]
DOI 10.1109/MARSS.2019.8860982
Co-authors Andrew Fleming
2018 Ruppert MG, Yong YK, 'Design of Hybrid Piezoelectric/Piezoresistive Cantilevers for Dynamic-mode Atomic Force Microscopy', Proceedings of the 2018 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM), Auckland, New Zealand (2018) [E1]
DOI 10.1109/AIM.2018.8452229
Citations Scopus - 3
Co-authors Yuenkuan Yong
2018 Moore SI, Ruppert MG, Yong YK, 'Arbitrary Placement of AFM Cantilever Higher Eigenmodes Using Structural Optimization', 2018 INTERNATIONAL CONFERENCE ON MANIPULATION, AUTOMATION AND ROBOTICS AT SMALL SCALES (MARSS), Nagoya, JAPAN (2018) [E1]
Citations Scopus - 2
Co-authors Yuenkuan Yong
2018 Ruppert MG, Harcombe D, Moore S, Fleming A, 'Direct Design of Closed-loop Demodulators for Amplitude Modulation Atomic Force Microscopy', 2018 Annual American Control Conference (ACC), Milwaukee, WI, USA (2018) [E1]
DOI 10.23919/ACC.2018.8430896
Citations Scopus - 4Web of Science - 2
Co-authors Andrew Fleming
2017 Ruppert MG, Harcombe DM, Ragazzon MRP, Moheimani SOR, Fleming AJ, 'Frequency domain analysis of robust demodulators for high-speed atomic force microscopy', Proceedings of the 2017 American Control Conference, Seattle, USA (2017) [E1]
DOI 10.23919/ACC.2017.7963175
Citations Scopus - 4Web of Science - 1
Co-authors Andrew Fleming, Reza Moheimani
2017 Harcombe DM, Ruppert MG, Ragazzon MRP, Fleming AJ, 'Higher-harmonic AFM Imaging with a High-Bandwidth Multifrequency Lyapunov Filter', IEEE/ASME International Conference on Advanced Intelligent Mechatronics, AIM, Munich, Germany (2017) [E1]
DOI 10.1109/AIM.2017.8014103
Citations Scopus - 7Web of Science - 5
Co-authors Andrew Fleming
2017 Maroufi M, Ruppert MG, Fowler AG, Moheimani SOR, 'Design and control of a single-chip SOI-MEMS atomic force microscope', Proceedings of the 2017 American Control Conference, Seattle, USA (2017) [E1]
DOI 10.23919/ACC.2017.7963386
Citations Scopus - 2Web of Science - 1
Co-authors Reza Moheimani
2017 Ruppert MG, Maroufi M, Bazaei A, Moheimani SOR, 'Kalman Filter Enabled High-Speed Control of a MEMS Nanopositioner', IFAC PAPERSONLINE, Toulouse, FRANCE (2017) [E1]
DOI 10.1016/j.ifacol.2017.08.1879
Citations Scopus - 5Web of Science - 4
Co-authors Ali Bazaei, Reza Moheimani
2017 Moore SI, Ruppert MG, Yong YK, 'Design and Analysis of Piezoelectric Cantilevers with Enhanced Higher Eigenmodes for Atomic Force Microscopy', IEEE/ASME International Conference on Advanced Intelligent Mechatronics, AIM, Munich, Germany (2017) [E1]
DOI 10.1109/AIM.2017.8014102
Citations Scopus - 1
Co-authors Yuenkuan Yong
2016 Moheimani SOR, Fowler A, Maroufi M, Ruppert M, 'On-chip Atomic Force Microscopy: Mechatronic System Design and Control', 2016 AMERICAN CONTROL CONFERENCE (ACC), Boston, MA (2016)
Co-authors Reza Moheimani
2016 Ruppert MG, Harcombe DM, Reza Moheimani SO, 'State estimation for high-speed multifrequency atomic force microscopy', Proceedings of the 2016 American Control Conference, Boston, MA (2016) [E1]
DOI 10.1109/ACC.2016.7525311
Citations Scopus - 5Web of Science - 5
Co-authors Reza Moheimani
2016 Ruppert MG, Moheimani SOR, 'MULTI-MODE Q CONTROL IN MULTIFREQUENCY ATOMIC FORCE MICROSCOPY', INTERNATIONAL DESIGN ENGINEERING TECHNICAL CONFERENCES AND COMPUTERS AND INFORMATION IN ENGINEERING CONFERENCE, 2015, VOL 4, Boston, MA (2016) [E1]
Citations Scopus - 5
Co-authors Reza Moheimani
2014 Ruppert MG, Moheimani SOR, 'Novel reciprocal self-sensing techniques for tapping-mode atomic force microscopy', IFAC Proceedings Volumes (IFAC-PapersOnline) (2014) [E1]

We evaluate two novel reciprocal self-sensing methods for tapping-mode atomic force microscopy (TM-AFM) utilizing charge measurement and charge actuation, respectively. A microcan... [more]

We evaluate two novel reciprocal self-sensing methods for tapping-mode atomic force microscopy (TM-AFM) utilizing charge measurement and charge actuation, respectively. A microcantilever, which can be batch fabricated through a standard microelectromechanical system (MEMS) process, is coated with a single piezoelectric layer and simultaneously used for actuation and deflection sensing. The setup enables the elimination of the optical beam deflection technique which is commonly used to measure the cantilever oscillation amplitude. The voltage to charge and charge to voltage transfer functions reveal a high amount of capacitive feedthrough which degrades the dynamic range of the sensors significantly. A feedforward control technique is employed to cancel the feedthrough and increase the dynamic range from less than 1dB to approximately 30 dB. Experiments show that the conditioned self-sensing schemes achieve an excellent signal-to-noise ratio and can therefore be used to provide the feedback signal for TM-AFM imaging.

DOI 10.3182/20140824-6-za-1003.00376
Citations Scopus - 9Web of Science - 3
Co-authors Reza Moheimani
2013 Ruppert MG, Fairbairn MW, Moheimani SOR, 'Multi-Mode Resonant Control of a Microcantilever for Atomic Force Microscopy', 2013 IEEE/ASME International Conference On Advanced Intelligent Mechatronics (AIM): Mechatronics For Human Wellbeing, Wollongong, Australia (2013) [E1]
Citations Scopus - 11Web of Science - 7
Co-authors Reza Moheimani
Show 14 more conferences

Thesis / Dissertation (1 outputs)

Year Citation Altmetrics Link
2017 Ruppert MG, Self-sensing, estimation and control in multifrequency atomic force microscopy, The University of Newcastle (2017)
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Grants and Funding

Summary

Number of grants 17
Total funding $1,393,305

Click on a grant title below to expand the full details for that specific grant.

20213 grants / $441,555

Subsurface Atomic Force Microscopy using Dual Probes$210,000

Funding body: ARC (Australian Research Council)

Funding body ARC (Australian Research Council)
Project Team Professor Andrew Fleming, Doctor Michael Ruppert, Associate Professor Yuen Yong, A/Prof Hamed Sadeghian, Hamed Sadeghian
Scheme Discovery Projects
Role Investigator
Funding Start 2021
Funding Finish 2023
GNo G2000139
Type Of Funding C1200 - Aust Competitive - ARC
Category 1200
UON Y

Femtoliter Liquid Deposition Facility$192,345

Funding body: Collaborating Organisation Cash Contribution

Funding body Collaborating Organisation Cash Contribution
Project Team

Prof Andrew Fleming, Dr Michael Ruppert, A/Prof Yuen Yong, A/Prof Ajay Karakoti, A/Prof Dzung Dao, Dr Van Dau, Dr Yong Zhu, Prof Giacinta Parish, Dr Gino Putrino, Prof Brett Nener
Scheme ARC LIEF
Role Investigator
Funding Start 2021
Funding Finish 2021
GNo
Type Of Funding C1200 - Aust Competitive - ARC
Category 1200
UON N

Subsurface Atomic Force Microscopy using Dual Probes$39,210

Funding body: Collaborating Organisation Cash Contribution

Funding body Collaborating Organisation Cash Contribution
Project Team

Prof Andrew Fleming, Dr Michael Ruppert, A/Prof Yuen Yong, A/Prof Hamed Sadeghian
Scheme ARC DP
Role Investigator
Funding Start 2021
Funding Finish 2023
GNo
Type Of Funding C1200 - Aust Competitive - ARC
Category 1200
UON N

20202 grants / $3,760

Characterization of a Microelectromechanical Piezoresistive Sensor$3,000

Funding body: University of Newcastle

Funding body University of Newcastle
Project Team

Dr Michael Ruppert
Scheme 2020 DVCRI Summer Research Internship Scheme
Role Lead
Funding Start 2020
Funding Finish 2021
GNo
Type Of Funding Internal
Category INTE
UON N

Mobility Grant$760

Funding body: Australian Academy of Science

Funding body Australian Academy of Science
Project Team

Michael G. Ruppert
Scheme EMCR Mobility Grant
Role Lead
Funding Start 2020
Funding Finish 2020
GNo
Type Of Funding External
Category EXTE
UON N

20197 grants / $840,884

A femtosecond laser micromachining facility for a wide range of materials$438,783

Funding body: ARC (Australian Research Council)

Funding body ARC (Australian Research Council)
Project Team

Prof Nam-Trung Nguyen, A/Prof Dzung Dao, Dr Yong Zhu, Dr Muhammad J. A. Shiddiky, Dr Porun Liu, Prof Han Huang, Prof Ming-Xing Zhang, Prof Cheng Yan, Prof Yuantong Gu, Prof John Bell, Prof Andrew Fleming, A/Prof Yuen Yong, Dr Michael Ruppert
Scheme Linkage Infrastructure Equipment & Facilities (LIEF)
Role Investigator
Funding Start 2019
Funding Finish 2019
GNo
Type Of Funding Aust Competitive - Commonwealth
Category 1CS
UON N

A femtosecond laser micromachining facility for a wide range of materials$374,217

Funding body: Collaborating Organisation Cash Contribution

Funding body Collaborating Organisation Cash Contribution
Project Team

Prof Nam-Trung Nguyen, A/Prof Dzung Dao, Dr Yong Zhu, Dr Muhammad J. A. Shiddiky, Dr Porun Liu, Prof Han Huang, Prof Ming-Xing Zhang, Prof Cheng Yan, Prof Yuantong Gu, Prof John Bell, Prof Andrew Fleming, A/Prof Yuen Yong, Dr Michael Ruppert
Scheme ARC LIEF
Role Investigator
Funding Start 2019
Funding Finish 2019
GNo
Type Of Funding External
Category EXTE
UON N

Analysis of Piezoelectric Transducers for High-Resolution and Multifrequency Atomic Force Microscopy in Vacuum$14,252

Funding body: Deutsche Forschungsgemeinschaft German Research Foundation(DFG)

Funding body Deutsche Forschungsgemeinschaft German Research Foundation(DFG)
Project Team

Michael G. Ruppert, Daniel Ebeling
Scheme International Cooperation
Role Lead
Funding Start 2019
Funding Finish 2019
GNo
Type Of Funding External
Category EXTE
UON N

Design and Implementation of Resonant Controllers for Multimode Atomic Force Microscopy$5,000

Funding body: Priority Research Center for Complex Dynamic Systems and Control (PRC CDSC)

Funding body Priority Research Center for Complex Dynamic Systems and Control (PRC CDSC)
Project Team

Michael G. Ruppert, Yuen K. Yong, Timothy Lim Yong Lee
Scheme 2019 CDSC Undergraduate Research Project
Role Lead
Funding Start 2019
Funding Finish 2019
GNo
Type Of Funding Internal
Category INTE
UON N

Analysis of Piezoelectric Transducers for High-Resolution and Multifrequency Atomic Force Microscopy in Vacuum$3,632

Funding body: Deutsche Forschungsgemeinschaft German Research Foundation(DFG)

Funding body Deutsche Forschungsgemeinschaft German Research Foundation(DFG)
Project Team Doctor Michael Ruppert, Dr Daniel Ebeling
Scheme International Cooperation
Role Lead
Funding Start 2019
Funding Finish 2019
GNo G1900629
Type Of Funding C3211 - International For profit
Category 3211
UON Y

Modelling and Feasibility Study of Alternative Materials and Tip Geometries for TERS Imaging$2,500

Funding body: Priority Research Center for Complex Dynamic Systems and Control (PRC CDSC)

Funding body Priority Research Center for Complex Dynamic Systems and Control (PRC CDSC)
Project Team

L. McCourt, B. Routley, M. G. Ruppert, V. Keast, A. J. Fleming
Scheme 2019 HDR Travel Support
Role Investigator
Funding Start 2019
Funding Finish 2019
GNo
Type Of Funding Internal
Category INTE
UON N

Conference Travel Grant$2,500

Int. Conference on Manipulation, Automation and Robotics at Small Scales (MARSS) 2019

Funding body: Faculty of Engineering and Built Environment - The University of Newcastle (Australia)

Funding body Faculty of Engineering and Built Environment - The University of Newcastle (Australia)
Project Team

Michael Ruppert
Scheme Faculty Conference Travel Grant
Role Lead
Funding Start 2019
Funding Finish 2019
GNo
Type Of Funding Internal
Category INTE
UON N

20173 grants / $67,521

Automated XYZ scanner for Confocal Raman Spectroscopy$43,388

Funding body: The University of Newcastle

Funding body The University of Newcastle
Project Team

Andrew Fleming, John Holdsworth, Pradeep Tanwar, Michael Ruppert, Yuen Yong
Scheme UON 2017 Researcher Equipment Grant
Role Investigator
Funding Start 2017
Funding Finish 2017
GNo
Type Of Funding Internal
Category INTE
UON N

Simultaneous Surface and Material Imaging with Tapping-mode Tip-enhanced Raman Spectroscopy$22,133

Funding body: Faculty of Engineering and Built Environment - The University of Newcastle (Australia)

Funding body Faculty of Engineering and Built Environment - The University of Newcastle (Australia)
Project Team

Michael Ruppert, Andrew Fleming, Yuen Yong, John Holdsworth, Pradeep Tanwar
Scheme 2017 FEBE Strategic Pilot Grant
Role Lead
Funding Start 2017
Funding Finish 2017
GNo
Type Of Funding Internal
Category INTE
UON N

Conference Travel Grant$2,000

IFAC World Congress

Funding body: Faculty of Engineering and Built Environment - The University of Newcastle (Australia)

Funding body Faculty of Engineering and Built Environment - The University of Newcastle (Australia)
Project Team

Michael Ruppert
Scheme Faculty Conference Travel Grant
Role Lead
Funding Start 2017
Funding Finish 2017
GNo
Type Of Funding Internal
Category INTE
UON N

20151 grants / $2,000

Conference Travel Grant$2,000

Funding body: Zurich Instruments AG

Funding body Zurich Instruments AG
Project Team

Michael Ruppert
Scheme Travel Grant
Role Lead
Funding Start 2015
Funding Finish 2015
GNo
Type Of Funding External
Category EXTE
UON N

20141 grants / $37,585

Cantilever mass sensing application in a microfluidic device$37,585

Funding body: CSIRO - Commonwealth Scientific and Industrial Research Organisation

Funding body CSIRO - Commonwealth Scientific and Industrial Research Organisation
Project Team

Prof. Reza Moheimani, Mr. Michael Ruppert
Scheme Postgraduate Scholarship
Role Investigator
Funding Start 2014
Funding Finish 2016
GNo
Type Of Funding Other Public Sector - Commonwealth
Category 2OPC
UON N
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Research Supervision

Number of supervisions

Completed3
Current2

Current Supervision

Commenced Level of Study Research Title Program Supervisor Type
2018 PhD Maskless Lithography Optimisation and Two Photon Near Field Lithography PhD (Electrical Engineering), College of Engineering, Science and Environment, The University of Newcastle Co-Supervisor
2018 PhD Design and Control of Multi-Modal Microcantilevers for Atomic Force Microscopy PhD (Electrical Engineering), College of Engineering, Science and Environment, The University of Newcastle Co-Supervisor

Past Supervision

Year Level of Study Research Title Program Supervisor Type
2020 PhD High-speed Demodulation in Multifrequency Atomic Force Microscopy PhD (Electrical Engineering), College of Engineering, Science and Environment, The University of Newcastle Co-Supervisor
2015 Honours High-speed Estimation in Multifrequency Atomic Force Microscopy
Final Year Project for the degree of Bachelor of Engineering in Electrical Engineering (Honours) at The University of Newcastle.		 Electrical Engineering, Faculty of Engineering and Built Environment - The University of Newcastle (Australia) Principal Supervisor
2014 Honours State Estimation using A Kalman Filter in Tapping-Mode Atomic Force Microscopy
Final Year Project for the degree of Bachelor of Mechatronics Engineering at the University of Newcastle.		 Electrical Engineering, Faculty of Engineering and Built Environment - The University of Newcastle (Australia) Co-Supervisor
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Research Projects

Novel Microcantilevers for Multifrequency Atomic Force Microscopy 2016 -

This work motivates a class of probes based on microelectromechanical system (MEMS) design with integrated actuators and sensors optimized for multifrequency operation. Specifically, integrated piezoelectric transduction schemes enable the miniaturization of the Atomic Force Microscope towards a cost-effective single-chip device with nanoscale precision in a much smaller form factor than that of conventional macroscale instruments.

Grants

Novel Microcantilevers for Multifrequency Atomic Force Microscopy

Funding body: ARC (Australian Research Council)

Funding body ARC (Australian Research Council)
Project Team Associate Professor Yuen Yong
Scheme Discovery Projects

Publications

Ruppert MG, Fowler AG, Maroufi M, Moheimani SOR, 'On-Chip Dynamic Mode Atomic Force Microscopy: A Silicon-on-Insulator MEMS Approach', JOURNAL OF MICROELECTROMECHANICAL SYSTEMS, 26 215-225 (2017) [C1]

Ruppert MG, Yong YK, 'Note: Guaranteed collocated multimode control of an atomic force microscope cantilever using on-chip piezoelectric actuation and sensing', Review of Scientific Instruments, 88 (2017) [C1]

Moore SI, Ruppert MG, Yong YK, 'Design and Analysis of Piezoelectric Cantilevers with Enhanced Higher Eigenmodes for Atomic Force Microscopy', IEEE/ASME International Conference on Advanced Intelligent Mechatronics, AIM, Munich, Germany (2017) [E1]

Moore SI, Ruppert MG, Yong YK, 'Multimodal cantilevers with novel piezoelectric layer topology for sensitivity enhancement', BEILSTEIN JOURNAL OF NANOTECHNOLOGY, 8 358-371 (2017) [C1]

Ruppert MG, Yong YK, 'Design of Hybrid Piezoelectric/Piezoresistive Cantilevers for Dynamic-mode Atomic Force Microscopy', Proceedings of the 2018 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM), Auckland, New Zealand (2018) [E1]

Students

Program Research Title
PhD
College of Engineering, Science and Environment		 High-speed Demodulation in Multifrequency Atomic Force Microscopy
PhD
College of Engineering, Science and Environment		 Design and Control of Multi-Modal Microcantilevers for Atomic Force Microscopy

Collaborators

Name Organisation
Mr Steven Ian Moore University of Newcastle
Doctor Michael Gunter Ruppert University of Newcastle
Associate Professor Yuen Yong University of Newcastle

Demodulation Techniques for High-Speed and Multifrequency Atomic Force Microscopy 2015 - 2019

The demodulator is a crucial bandwidth-limiting component in the z-axis feedback loop of an atomic force microscope. Specifically for
modern multi-frequency techniques, where higher harmonic and/or higher eigenmode contributions are present in the oscillation signal, the fidelity of the estimates obtained from some traditional demodulation techniques is not guaranteed. This project proposes novel demodulation schemes with high measurement bandwidth, multi-frequency capability and low measurement noise which are rigorously compared against traditional techniques.

Publications

Karvinen KS, Ruppert MG, Mahata K, Moheimani SOR, 'Direct tip-sample force estimation for high-speed dynamic mode atomic force microscopy', IEEE Transactions on Nanotechnology, 13 1257-1265 (2014) [C1]

Ruppert MG, Karvinen KS, Wiggins SL, Moheimani SOR, 'A Kalman Filter for Amplitude Estimation in High-Speed Dynamic Mode Atomic Force Microscopy', IEEE Transactions on Control Systems Technology, 24 276-284 (2016) [C1]

Ruppert MG, Harcombe DM, Moheimani SOR, 'High-Bandwidth Demodulation in MF-AFM: A Kalman Filtering Approach', IEEE-ASME TRANSACTIONS ON MECHATRONICS, 21 2705-2715 (2016) [C1]

Ruppert MG, Harcombe DM, Reza Moheimani SO, 'State estimation for high-speed multifrequency atomic force microscopy', Proceedings of the 2016 American Control Conference, Boston, MA (2016) [E1]

Ruppert MG, Harcombe DM, Ragazzon MRP, Moheimani SOR, Fleming AJ, 'A review of demodulation techniques for amplitude-modulation atomic force microscopy', BEILSTEIN JOURNAL OF NANOTECHNOLOGY, 8 1407-1426 (2017) [C1]

Harcombe DM, Ruppert MG, Ragazzon MRP, Fleming AJ, 'Higher-harmonic AFM Imaging with a High-Bandwidth Multifrequency Lyapunov Filter', IEEE/ASME International Conference on Advanced Intelligent Mechatronics, AIM, Munich, Germany (2017) [E1]

Ruppert MG, Harcombe DM, Ragazzon MRP, Moheimani SOR, Fleming AJ, 'Frequency domain analysis of robust demodulators for high-speed atomic force microscopy', Proceedings of the 2017 American Control Conference, Seattle, USA (2017) [E1]

Ruppert MG, Maroufi M, Bazaei A, Moheimani SOR, 'Kalman Filter Enabled High-Speed Control of a MEMS Nanopositioner', IFAC PAPERSONLINE, Toulouse, FRANCE (2017) [E1]

Ragazzon MRP, Ruppert MG, Harcombe DM, Fleming AJ, Gravdahl JT, 'Lyapunov Estimator for High-Speed Demodulation in Dynamic Mode Atomic Force Microscopy', IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY, 26 765-772 (2018) [C1]

Harcombe DM, Ruppert MG, Ragazzon MRP, Fleming AJ, 'Lyapunov estimation for high-speed demodulation in multifrequency atomic force microscopy', BEILSTEIN JOURNAL OF NANOTECHNOLOGY, 9 490-498 (2018) [C1]

Students

Program Research Title
PhD
College of Engineering, Science and Environment		 High-speed Demodulation in Multifrequency Atomic Force Microscopy

Collaborators

Name Organisation
Michael Remo Palmén Ragazzon Norwegian University of Science And Technology

Emerging Control Challenges in Multifreqency Atomic Force Microscopy 2016 - 2019

Integrated actuation and sensing with piezoelectric transduction schemes enables the development of a multimode controllers which exhibits remarkable performance in arbitrarily modifying the quality factor of multiple eigenmodes and comes with inherent stability robustness. The goal of these controllers is to provide improved imaging stability, higher scan speeds and adjustable contrast when mapping nanomechanical properties of soft samples.

Publications

Ruppert MG, Fairbairn MW, Moheimani SOR, 'Multi-Mode Resonant Control of a Microcantilever for Atomic Force Microscopy', 2013 IEEE/ASME International Conference On Advanced Intelligent Mechatronics (AIM): Mechatronics For Human Wellbeing, Wollongong, Australia (2013) [E1]

Ruppert MG, Moheimani SOR, 'Multimode Q Control in Tapping-Mode AFM: Enabling Imaging on Higher Flexural Eigenmodes', IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY, 24 1149-1159 (2016) [C1]

Ruppert MG, Moheimani SOR, 'MULTI-MODE Q CONTROL IN MULTIFREQUENCY ATOMIC FORCE MICROSCOPY', INTERNATIONAL DESIGN ENGINEERING TECHNICAL CONFERENCES AND COMPUTERS AND INFORMATION IN ENGINEERING CONFERENCE, 2015, VOL 4, Boston, MA (2016) [E1]

Maroufi M, Ruppert MG, Fowler AG, Moheimani SOR, 'Design and control of a single-chip SOI-MEMS atomic force microscope', Proceedings of the 2017 American Control Conference, Seattle, USA (2017) [E1]

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Research Collaborations

The map is a representation of a researchers co-authorship with collaborators across the globe. The map displays the number of publications against a country, where there is at least one co-author based in that country. Data is sourced from the University of Newcastle research publication management system (NURO) and may not fully represent the authors complete body of work.

Country Count of Publications
Australia 40
United States 11
Norway 6
Switzerland 2
Canada 1
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News

ARC Discovery Projects and Linkage Projects schemes graphic

University of Newcastle secures over $6 million in ARC funding

November 13, 2020

The Australian Research Council (ARC) has awarded the University of Newcastle more than $6 million in competitive research funding through its Discovery Projects and Linkage Projects schemes.
Michael Ruppert receiving best paper award at IEEE conference

Dr Michael Ruppert receives IEEE Best Paper Award

February 4, 2019

Dr Ruppert attended the IEEE Control Systems Society Awards Ceremony at the 2018 IEEE Conference on Decision and Control in Miami, Florida to accept the outstanding paper award from the journal IEEE Transactions on Control Systems Technology.
ARC Project Funding

ARC Funding Success - Precision Mechatronics Lab

November 27, 2018

Prof Andrew Fleming, A/Prof Yuen Yong and Dr Michael Ruppert from the Precision Mechatronics Lab contributed to securing a $438,000 ARC grant in 2019. Read more...

Dr Michael Ruppert

Positions

Research Associate
Precision Mechatronics Lab
School of Electrical Engineering and Computing
College of Engineering, Science and Environment

Casual Research Assistant
Precision Mechatronics Lab
School of Electrical Engineering and Computing
College of Engineering, Science and Environment

Contact Details

Email michael.ruppert@newcastle.edu.au
Phone (02) 4921 7345
Links Research and Innovation Cluster
Research and Innovation Cluster

Office

Room ES136
Building Engineering
Location Callaghan
University Drive
Callaghan, NSW 2308
Australia
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Research Networks

New Paradigm in Microscopy: Atomic Force Microscope on a Chip

New Paradigm in Microscopy: Atomic Force Microscope on a Chip

Read more about this important research breakthrough.