Results 221 to 230 of about 1,358 (261)

Soft dielectric elastomer actuator micropump

Sensors and Actuators A: Physical, 2017
This paper presents a miniaturized soft dielectric elastomer actuator (DEA) micropump which was demonstrated in microfluidic application. A strain-induced pre-stretched DEA undergoes expansion when subjected to high voltage, providing a two-way actuation in the presence of a pull-up spring.
Mohd. Ghazali, F. A., Mah, C. K., Abu Zaiter, A., Chee, P. S., Mohamed Ali, M. S.   +4 more
openaire   +1 more source

Bending Dielectric Elastomer Actuators

ECS Meeting Abstracts
Dielectric Elastomer Actuators (DEAs) are a type of electroactive polymers that transform electric energy into mechanical work and are capable of large strains and high energy densities. DEAs are often described as “artificial muscles” because they exhibit strains, energy density, and responsiveness similar to natural human muscles.
Katelyn Wilson, Nikhil Deliwala, D. R. Clarke, Thiagarajan Soundappan   +3 more
openaire   +1 more source

Contractile folded dielectric elastomer actuators

SPIE Proceedings, 2007
New lightweight, compliant, reliable and cheap contractile linear actuators are demanded today for many fields of application, such as robotics, automation and biomedical disciplines. Within the family of electroactive polymers, dielectric elastomers are rapidly emerging as high-performance transduction materials, resulting particularly attractive in
CARPI, FEDERICO, De Rossi, D.
openaire   +1 more source

Dielectric Elastomers in Actuator Technology

Advanced Engineering Materials, 2005
AbstractElectroactive polymers (EAPs) are characterized by their ability to respond to external electric stimulation by displaying a significant shape or size displacement. Actuators, based on dielectric elastomers exhibiting low elastic stiffness and high dielectric constants, can produce high strain levels from 10 to 380 %.
C. Löwe, X. Zhang, G. Kovacs
openaire   +1 more source

Applications of dielectric elastomer actuators

SPIE Proceedings, 2001
Dielectric elastomer actuators, based on the field-induced deformation of elastomeric polymers with compliant electrodes, can produce a large strain response, combined with a fast response time and high electromechanical efficiency. This unique performance, combined with other factors such as low cost, suggests many potential applications, a wide range
Ron Pelrine, Peter Sommer-Larsen, Roy D. Kornbluh, Richard Heydt, Guggi Kofod, Qibing Pei, Peter Gravesen   +6 more
openaire   +1 more source

Actuated Micro-optical Submount Using a Dielectric Elastomer Actuator

IEEE/ASME Transactions on Mechatronics, 2011
Analysis of the operating characteristics of a dielectric elastomer actuator (DEA) submount for the high-precision positioning of optical components in one dimension is presented. Precise alignment of a single-mode fiber is demonstrated and variation of the sensitivity of the submount motion by changing the bias voltage is confirmed.
Jordan, Grace, McCarthy, Denis N., Schlepple, N., Krissler, Jan, Schroeder, H., Kofod, Guggi   +5 more
openaire   +1 more source

Dielectric elastomers as next-generation polymeric actuators

Soft Matter, 2007
Due to their versatile properties, robust behavior, facile processability and low cost, organic polymers have become the material of choice for an increasing number of mature and cutting-edge technologies. In the last decade or so, a new class of polymers capable of responding to external electrical stimulation by displaying significant size or shape ...
Ravi, Shankar, Tushar K, Ghosh, Richard J, Spontak   +2 more
openaire   +2 more sources

Stress measurements of planar dielectric elastomer actuators

Review of Scientific Instruments, 2016
Dielectric elastomer actuator (DEA) micro- and nano-structures are referred to artificial muscles because of their specific continuous power and adequate time response. The bending measurement of an asymmetric, planar DEA is described. The asymmetric cantilevers consist of 1 or 5 μm-thin DEAs deposited on polyethylene naphthalate (PEN) substrates 16 ...
Bekim Osmani, Elise A. Aeby, Bert Müller   +2 more
openaire   +3 more sources

Modeling of Dielectric Elastomer Actuator

2019
Dielectric elastomer deforms in terms of area expansion under a voltage. The large and quick strain in dielectric elastomer features promising applications in soft robotics. This chapter introduces the characteristics of dielectric elastomer in physics as well as the performance of dielectric elastomer actuator (DEA).
Bo Li, Hualing Chen, Guimin Chen
openaire   +1 more source

Integrated sensing and actuation of dielectric elastomer actuator

SPIE Proceedings, 2017
Dielectric elastomer (DE) is a type of soft actuating material, the shape of which can be changed under electrical voltage stimuli. DE materials have great potential in applications involving energy harvesters, micro-manipulators, and adaptive optics. In this paper, a stripe DE actuator with integrated sensing and actuation is designed and fabricated ...
Zhihang Ye, Zheng Chen
openaire   +1 more source