A novel transparent dielectric elastomer sensor for compressive force measurements

2016 ◽  
Author(s):  
Yiming Liang ◽  
Bile Wan ◽  
Guorui Li ◽  
Yuhan Xie ◽  
Tiefeng Li
Keyword(s):  
Compressive Force ◽  
Dielectric Elastomer ◽  
Force Measurements ◽  
Transparent Dielectric

Highly flexible and transparent dielectric elastomer actuators using silver nanowire and carbon nanotube hybrid electrodes

Soft Matter ◽  
2017 ◽  
Vol 13 (37) ◽  
pp. 6390-6395 ◽  
Author(s):  
Ye Rim Lee ◽  
Hyungho Kwon ◽  
Do Hoon Lee ◽  
Byung Yang Lee
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Silver Nanowires ◽  
Dielectric Elastomer ◽  
Silver Nanowire ◽  
Dielectric Elastomer Actuator ◽  
Dielectric Elastomer Actuators ◽  
Transparent Dielectric ◽  
Optically Transparent ◽  
Highly Stretchable

Electrodes consisting of silver nanowires and carbon nanotubes enable a dielectric elastomer actuator to become highly stretchable and optically transparent.

Sensing arbitrary contact forces with a flexible porous dielectric elastomer

2021 ◽  
Author(s):  
Baoqing Nie ◽  
Jialei Geng ◽  
Ting Yao ◽  
Yihui Miao ◽  
Yiqiu Zhang ◽  
...  
Keyword(s):  
Dielectric Elastomer ◽  
Contact Forces ◽  
Tactile Sensing ◽  
Next Generation ◽  
Force Measurements ◽  
Flexible Sensors ◽  
Tangential Directions

Artificial tactile sensing in next-generation robots requires the development of flexible sensors for complicated tactile force measurements in both normal and tangential directions.

Enhanced Compressive Sensing of Dielectric Elastomer Sensor Using a Novel Structure

2015 ◽  
Vol 82 (10) ◽  
Author(s):  
Junjie Liu ◽  
Guoyong Mao ◽  
Xiaoqiang Huang ◽  
Zhanan Zou ◽  
Shaoxing Qu
Keyword(s):  
Large Deformation ◽  
Plane Deformation ◽  
Compressive Force ◽  
High Sensitivity ◽  
Dielectric Elastomer ◽  
Sensor Element ◽  
Aspect Ratios ◽  
Novel Structure ◽  
And Performance ◽  
External Forces

Dielectric elastomer (DE) can undergo large deformation when subjected to external forces or voltage, leading to the variation of the capacitance. A novel DE sensor is proposed to detect compressive force. This sensor consists of a series of elements made of DE membrane with out-of-plane deformation. Each element experiences highly inhomogeneous large deformation to obtain high sensitivity. Both experimental and theoretical studies are conducted to optimize the performance of the sensor element, and the effects of the prestretches and the aspect ratios on the sensitivity are achieved. Results from the theoretical analysis based on continuum mechanics agree well with the experimental data. Furthermore, the reliability of the sensor element is illustrated by additional experimental investigation on the operation after 2000 cyclic loadings. This study provides guidance for the design and performance analysis of soft sensors.

Electromechanically driven variable-focus lens based on transparent dielectric elastomer

2012 ◽  
Vol 51 (15) ◽  
pp. 2987 ◽  
Author(s):  
Sang-ik Son ◽  
David Pugal ◽  
Taeseon Hwang ◽  
Hyouk Ryeol Choi ◽  
Ja Choon Koo ◽  
...  
Keyword(s):  
Dielectric Elastomer ◽  
Transparent Dielectric ◽  
Variable Focus

The analysis of transparent dielectric elastomer actuators for lens

Optik ◽  
2019 ◽  
Vol 178 ◽  
pp. 841-845 ◽  
Author(s):  
Hui Zhang ◽  
Min Dai ◽  
Zhisheng Zhang
Keyword(s):  
Dielectric Elastomer ◽  
Dielectric Elastomer Actuators ◽  
Transparent Dielectric

On the improvement of the dynamic performance of dielectric elastomer actuators for active compression

2018 ◽  
Vol 29 (5) ◽  
pp. 986-997 ◽  
Author(s):  
Hamza Edher ◽  
Armaghan Salehian
Keyword(s):  
Dynamic Performance ◽  
Hold Time ◽  
Compressive Force ◽  
Dielectric Elastomer ◽  
Output Curve ◽  
Dielectric Elastomer Actuator ◽  
Dielectric Elastomer Actuators ◽  
Low Weight ◽  
Output Force ◽  
Novel Method

Dielectric elastomer actuators have been considered for an increasing number of applications due to their desirable characteristics of low weight, high strain outputs and favourable material costs. The present work describes the use of a dielectric elastomer actuator in conjunction with a belt mechanism to apply cyclic active compression. The belt mechanism helps convert the stress relaxation upon the voltage application to the dielectric elastomer actuator to a compressive force. Testing is conducted using multi-layered silicone–based dielectric elastomer actuators. A novel method of dynamically charging dielectric elastomer actuators through manipulating the input signal shape, termed the hold method, is introduced. Using this method, cyclic actuation strain output can be increased by 24% with insignificant change in actuation output curve shape. Furthermore, the effect of pre-stretch ratios on the output force amplitudes is characterized. The optimized hold time parameters obtained through cyclic dielectric elastomer force and strain are utilized for active compression physiological testing and a pressure gradient of 10 mmHg is achieved.

scholarly journals Tunable lenses using transparent dielectric elastomer actuators

2013 ◽  
Vol 21 (7) ◽  
pp. 8669 ◽  
Author(s):  
Samuel Shian ◽  
Roger M. Diebold ◽  
David R. Clarke
Keyword(s):  
Dielectric Elastomer ◽  
Dielectric Elastomer Actuators ◽  
Transparent Dielectric ◽  
Tunable Lenses
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