Study of self-sensing actuation strategies for quasi-static piezoelectric actuators

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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 ...

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 ...

This work is focused on investigating the effect of Ag doping on the dielectric and structural properties of the As-S-Se glass system and their suitability for potential applications in optoelectronics, such as electronic and switching components. A series ...

Piezoelectric actuators (PEAs) have been widely used in nano-positioning applications for their high resolution of displacement. However, hysteresis, which is an inherent property of ferroelectric PEAs has been shown to significantly degrade the system per ...

Ferroelectric materials, upon electric field biasing, display polarization discontinuities known as Barkhausen jumps, a subclass of a more general phenomenon known as crackling noise. Herein, we follow at the nanoscale the motion of 90 degree needle domain ...

The dielectric properties of tetragonal hybrid perovskite CH3NH3PbI3 are studied through molecular dynamics at a temperature of 300 K in the presence of a finite electric field. The high-frequency dielectric constant epsilon(infinity), is found to be 4.5 a ...

Composites in which particles of ferroelectric ceramic phase are randomly dispersed in a polymeric matrix are of interest because of flexibility, conformability, and ease of processing. However, their piezoelectric properties are rather low, unless very hi ...

We investigate optical absorption spectra obtained through time-dependent density functional theory (TD-DFT) based on nonempirical hybrid functionals that are designed to correctly reproduce the dielectric function. The comparison with state-of-the-art GW ...

This abstract presents an aluminum nitride (AlN) piezoelectric actuator for tuning optical resonance modes of silicon nitride photonic resonators. The AlN actuator is fabricated on top of a thick silicon dioxide cladding that encapsulates the nitride reson ...

We report on an actuator based on dielectric elastomers that is capable of antagonistic actuation and passive folding. This actuator enables foldability in robots with simple structures. Unlike other antagonistic dielectric elastomer devices, our concept u ...

This paper presents a micro manipulation platform based on several cm3-sized mobile micro robots. The proposed platform consists of a high resolution XY stage with the mobile micro robots on top of it, a camera with a microscopic objective for the local vi ...

Study of self-sensing actuation strategies for quasi-static piezoelectric actuators

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Hydraulically amplified dielectric actuator taxels

Influence of electric field, temperature, humidity, elastomer material, and encapsulation on the lifetime of dielectric elastomer actuators (DEAs) under DC actuation

Ag-doped As-S-Se chalcogenide glasses: a correlative study of structural and dielectrical properties

Quasi-Rayleigh model for modeling hysteresis of piezoelectric actuators

Individual Barkhausen Pulses of Ferroelastic Nanodomains

Low-Frequency Dielectric Response of Tetragonal Perovskite CH3NH3PbI3

Interface-Dominated Time-Dependent Behavior of Poled Poly(Vinylidene Fluoride–Trifluoroethylene)/Barium Titanate Composites

Accurate optical spectra through time-dependent density functional theory based on screening-dependent hybrid functionals

Port: A Piezoelectric Optical Resonance Tuner

A Foldable Antagonistic Actuator

Flexible micro manipulation platform based on tethered cm3-sized mobile micro robots