Publication
Development of a Monolithic Fiber-Based Electric Field Sensor
Publications associées (52)
Synthesis of polysiloxane elastomers modified with sulfonyl side groups and their electromechanical response
Holger Frauenrath, Yauhen Sheima
Dielectric elastomer transducers are elastic capacitors that respond to mechanical or electrical stress. They can be used in applications such as millimeter-sized soft robots and harvesters of the energy contained in ocean waves. The dielectric component o ...
ROYAL SOC CHEMISTRY2023Nonlinear electro-mechanical coupling and thermally stimulated currents in relaxor ferroelectrics
In this work, the emergence of polarization and electro-mechanical coupling in Pb(Mg1/3Nb2/3)O3 and Pb(Mg1/3Nb2/3)O3 â PbTiO3 was investigated by means of thermally stimulated current, and nonlinear dielectric and electro-mechanical measurements. The pre ...
EPFL2022High Permittivity Siloxanes as Promising Materials for Dielectric Elastomer Transducers: From Synthesis to Application
The speed of change in the modern world is impressive. Within the last 50 years, many devices and technologies have significantly transformed their appearance, intrinsic characteristics and improved their performance. Computers have changed from the size o ...
EPFL2022Capacitive sensor to monitor the level of drug inside an injector pen
Diabete is a disease which is spreading faster than ever, impacting now a larger population. Patients suffering from this disease need the injection of insulin to control extracellular sugar levels. Pharmaceutical companies developed injector pens to allow ...
EPFL2021Influence of electric field, temperature, humidity, elastomer material, and encapsulation on the lifetime of dielectric elastomer actuators (DEAs) under DC actuation
Herbert Shea, Fabio Beco Albuquerque
We present the effect of electric field, temperature, humidity, type of elastomer material, and encapsulation on the lifetime of silicone-based dielectric elastomer actuators (DEAs) under DC electric fields. DEAs are promising soft actuators, but little ha ...
IOP Publishing Ltd2021Stretchable and Soft Electroadhesion Using Liquid‐Metal Subsurface Microelectrodes
Dario Floreano, Yegor Piskarev, Jun Shintake, Michael Dickey
Electroadhesion is an attractive mechanism to electrically modulate adhesion to surfaces. Electroadhesion arises from the interaction of electric fields with conductive or dielectric materials. Electroadhesion devices consist of in-plane, interdigitated el ...
2021Hydraulically amplified dielectric actuator taxels
Herbert Shea, Min Gao, Edouard Franck Vincent Gustave Leroy
A dielectric actuator including an enclosure forming a cavity having a dielectric fluid therein, the enclosure having a base, a flexible membrane and a reversibly-stretchable membrane, and a pair of electrodes, one electrode of the pair of electrodes arran ...
2021Effect of input voltage frequency on the distribution of electrical stresses on the cell surface based on single-cell dielectrophoresis analysis
Electroporation is defined as cell membrane permeabilization under the application of electric fields. The mechanism of hydrophilic pore formation is not yet well understood. When cells are exposed to electric fields, electrical stresses act on their surfa ...
2020Measurement and Modeling of Both Distant and Close Electric Fields of an M‐Component in Rocket‐Triggered Lightning
Marcos Rubinstein, Mohammad Azadifar, Amirhossein Mostajabi, Qi Li, Mi Zhou
Simultaneous measurements of current and multiple‐station electric fields associated with a 5.4‐kA‐peak M‐component in rocket‐triggered lightning are presented in this study. A close‐range electric field measurement site was located northeast of the trigge ...
2020Electric-field control of single-molecule tautomerization
Klaus Kern, Christian Alexander Stephan Dette, Shai Mangel, Katharina Polyudov, Tobias Wollandt
The electric field is an important parameter to vary in a single-molecule experiment, because it can directly affect the charge distribution around the molecule. Yet, performing such an experiment with a well-defined electric field for a model chemical rea ...
2020