Dr. Ernst-Friedrich Markus Henke Profile

Dr. Ernst-Friedrich Markus Henke

Junior Research Group Leader at TU Dresden

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Publications (17)

Proceedings Article | 28 April 2023 Poster + Paper

Influence of manufacturing parameters on the quality of electrodes of a multi-layer capacitive strain sensor based on dielectric elastomers

Artem Prokopchuk, Arthur Ewert, Johannes Menning, Andreas Richter, Berthold Schlecht, Thomas Wallmersperger, Markus E.-F. Henke

Proceedings Volume 12483, 124831Q (2023) https://doi.org/10.1117/12.2656481

KEYWORDS: Electrodes, Sensors, Manufacturing, Capacitance, Capacitors, Design and modelling

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Proceedings Article | 28 April 2023 Paper

Effects of the soft matrices in dielectric elastomer actuator electrodes on their actuation performance

Jianan Yi, Volodymyr Shamraienko, Alexander Eychmüller, Iain Anderson, Andreas Richter, Markus Henke

Proceedings Volume 12482, 124820F (2023) https://doi.org/10.1117/12.2657669

KEYWORDS: Dielectric elastomer actuators, Electrodes, Printing, Inkjet technology, Ultrasonics, Matrices, Particles, Carbon, Silicon, Electrical conductivity

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Proceedings Article | 20 April 2022 Presentation + Paper

Enabling multichannel communication within dielectric elastomers

Luca Ciarella, Jianan Yi, Katherine Wilson, Andreas Richter, Iain Anderson, Ernst-Friedrich Markus Henke

Proceedings Volume 12042, 120420A (2022) https://doi.org/10.1117/12.2612332

KEYWORDS: Multiplexers, Switches, Sensors, Dielectrics, Electronics, Transistors, Electroactive polymers, Signal processing

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Proceedings Article | 20 April 2022 Presentation + Paper

Fabrication of piezoresistive devices based on dielectric elastomers via ultrasonic spraying

Jianan Yi, Luca Ciarella, Volodymyr Shamraienko, Frank Babick, Dmitry Borin, Moritz Scharff, Junhao Ni, Katherine Wilson, Andreas Richter, Markus Henke

Proceedings Volume 12042, 1204209 (2022) https://doi.org/10.1117/12.2611720

KEYWORDS: Resistance, Ultrasonics, Printing, Multiplexers, Sensors, Carbon, Dielectrics, Particles, Actuators

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Proceedings Article | 18 April 2022 Presentation

Chemical auto-inflation of DEA space robots

Joseph Ashby, Samuel Rosset, E.-F. Markus Henke, Iain Anderson

Proceedings Volume PC12042, PC1204206 (2022) https://doi.org/10.1117/12.2613893

KEYWORDS: Space robots, Silicon, Dielectric breakdown, Transducers, Sodium, Robots, Modeling, Humidity, Gases, Electrodes

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Proceedings Article | 25 March 2021 Presentation

Protecting dielectric elastomers from the space environment with ultra high SPF sunscreen

Joseph Ashby, Eduardo Trifoni, Joice Mathew, Iain Anderson, Thomas Loho, Samuel Rosset, E.-F. Markus Henke

Proceedings Volume 11587, 115871A (2021) https://doi.org/10.1117/12.2582924

KEYWORDS: Silicon, Dielectrics, Ultraviolet radiation, Oxygen, Optical coatings, Vacuum ultraviolet, Transducers, Space operations, Silica, Oxides

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Proceedings Article | 21 May 2020 Presentation + Paper

Sticky space snakes: hyper-redundant DEA robots with electro-adhesive feet

Joseph Ashby, Samuel Rosset, E. F. Markus Henke, Iain Anderson

Proceedings Volume 11375, 1137507 (2020) https://doi.org/10.1117/12.2558332

KEYWORDS: Robots, Satellites, Actuators, Silicon, Space robots, Gait analysis, Dielectrics, Electrodes, Polymers, Oxygen

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Proceedings Article | 29 March 2019 Presentation

Ink-jet printed conductive and semi-conductive rubber for dielectric elastomer devices (Conference Presentation)

Katherine Wilson, Jared Jordan, E.-F. Markus Henke, Geoffrey Slipher, Samuel Rosset, Iain Anderson

Proceedings Volume 10966, 1096605 (2019) https://doi.org/10.1117/12.2515285

KEYWORDS: Dielectrics, Electrodes, Silicon, Carbon, Silicon carbide, Microfluidics, Printing, Resistance, Dielectric elastomer actuators, Liquids

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Proceedings Article | 29 March 2019 Presentation

Soft geometric dielectric elastomer switches for soft robotics (Conference Presentation)

E.-F. Markus Henke, Katherine Wilson, Iain Andersin

Proceedings Volume 10966, 109661M (2019) https://doi.org/10.1117/12.2515213

KEYWORDS: Switches, Dielectrics, Robotics, Silicon, Silicon carbide, Electrodes, Switching, Signal processing, Dielectric elastomer actuators, Sensors

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Dielectric elastomer switches have shown large potential for integrating signal processing directly into multifunctional dielectric elastomers. Previously presented continuum dielectric elastomer switches (cDES) utilize percolation effects within piezoresistive membranes to directly switch high voltages, controlling dielectric elastomer actuators. The here presented geometric dielectric elastomer switches (gDES) use geometric air gaps in encapsulated soft sensor structures to switch both high and low voltages. gDES consist only of soft materials such as silicones and carbon-doped conductive silicones. The structured conductive electrode areas are arranged in such a way that they create small gaps within a shielded cavity. The gap can be opened or closed by an external deformation or pressure. Depending on the electrode design and mechanical characteristics, the necessary amount of deformation and pressure can be tailored exactly to the requirements of the application. Arrays of these switches can be integrated in soft robotic grippers and extend the features of those grippers by touch and shear force detection. Furthermore, gDES can act as limit switches and can be introduced in automation technology. One of the key advantages is that the switches themselves are entirely shielded and not affected by environmental influences. gDESs have an advantage of operation at lower voltages than related cDES. This reduces the necessary amount of driving voltage and opens up the application in classic automation technologies and robotics. gDESs possess conductive silicone composites containing conductive fillers. The switching points and the general behaviour (normally-open [NO] or normally-closed [NC]) are tuned by the geometry of conductive parts associated with the shielding silicone structures. Related to percolation-based cDESs, the gDESs are produced by classic microelectronic production technologies, such as soft lithography. We present the principle design of different gDESs and arrays of the same, the production techniques and first results of distributed touch sensing for soft robotic grippers. Methods and design parameters for adjusting the switching characteristics are presented and experimentally evaluated.

Proceedings Article | 22 March 2019 Presentation + Paper

Inflatable dielectric elastomer robots for space

Joseph Ashby, Samuel Rosset, E.-F. Markus Henke, Iain Anderson

Proceedings Volume 10966, 109661L (2019) https://doi.org/10.1117/12.2514227

KEYWORDS: Actuators, Electrodes, Polymers, Space operations, Prototyping, Dielectrics, Finite element methods, Ultraviolet radiation, Dielectric elastomer actuators, Space environment coatings

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Proceedings Article | 27 March 2018 Presentation

Frequency adjustable soft oscillators (Conference Presentation)

Katherine Wilson, E.-F. Markus Henke, Geoffrey Slipher, Iain Anderson

Proceedings Volume 10594, 105941Z (2018) https://doi.org/10.1117/12.2296778

KEYWORDS: Oscillators, Logic devices, Electronics, Robotics, Stretchable electrodes, Dielectrics, Silicon, Stretchable circuits, Resistance, Switches

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Proceedings Article | 10 May 2017 Presentation + Paper

Entirely soft dielectric elastomer robots

E.-F. Markus Henke, Katherine Wilson, Iain Anderson

Proceedings Volume 10163, 101631N (2017) https://doi.org/10.1117/12.2260361

KEYWORDS: Silicon, Robots, Dielectrics, Robotics, Actuators, Electrodes, Signal processing, Switches, Oscillators, Control systems

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Proceedings Article | 17 April 2017 Presentation + Paper

A mathematical model for an integrated self priming dielectric elastomer generator

Patrin Illenberger, Katherine Wilson, E.-F. Markus Henke, Udaya Madawala, Iain Anderson

Proceedings Volume 10163, 101630H (2017) https://doi.org/10.1117/12.2260263

KEYWORDS: Dielectrics, Mathematical modeling, Integration, Energy harvesting, Wind energy, Electronics, Capacitors, Modeling, Diodes, Capacitance, Control systems, Performance modeling, Resistance

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Proceedings Article | 17 April 2017 Presentation + Paper

Rubbery computing

Katherine Wilson, E.-F. Markus Henke, Geoffrey Slipher, Iain Anderson

Proceedings Volume 10163, 101632H (2017) https://doi.org/10.1117/12.2260393

KEYWORDS: Switches, Logic devices, Artificial muscles, Dielectrics, Logic, Digital electronics, Actuators, Circuit switching, Dielectric elastomer actuators, Digital electronic circuits, Robots, Electronics, Electrodes, Oscillators, Biomimetics

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Proceedings Article | 17 May 2013 Paper

On a high-potential variable flexural stiffness device

Markus Henke, Gerald Gerlach

Proceedings Volume 8763, 876312 (2013) https://doi.org/10.1117/12.2016928

KEYWORDS: Shape memory alloys, Finite element methods, Composites, Beam shaping, Actuators, Space operations, Energy harvesting, Carbon, Smart structures, Copper

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Proceedings Article | 9 April 2013 Paper

On the development of planar actuators for variable stiffness devices

Markus Henke, Gerald Gerlach

Proceedings Volume 8687, 868727 (2013) https://doi.org/10.1117/12.2010668

KEYWORDS: Actuators, Electrodes, Electroactive polymers, Connectors, Finite element methods, Composites, Teeth, Polymers, Carbon, Electroluminescent displays

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Proceedings Article | 4 April 2012 Paper

Multi-layer beam with variable stiffness based on electroactive polymers

Markus Henke, Jörg Sorber, Gerald Gerlach

Proceedings Volume 8340, 83401P (2012) https://doi.org/10.1117/12.915138

KEYWORDS: Actuators, Electroactive polymers, Composites, Prototyping, Teeth, Polymethylmethacrylate, Electrodes, Manufacturing, Lithography, Dielectrics

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Showing 5 of 17 publications

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