Application of Conductive Rubber Filled by Carbon Black for 3-D Force Measurement

2013 ◽  
Vol 300-301 ◽  
pp. 547-550
Author(s):  
Shan Hong Li ◽  
Yun Jian Ge ◽  
Ying Huang ◽  
Yu Bing Wang ◽  
Hui Bin Cao ◽  
...  
Keyword(s):  
Carbon Black ◽  
Force Measurement ◽  
Tactile Sensor ◽  
Force Model ◽  
Sensitive Material ◽  
Piezoresistive Effect ◽  
Conductive Rubber ◽  
Pressure Sensitive ◽  
Simulation Results ◽  
Pressure Resistance

Pressure-sensitive conductive rubber has been investigated as sensitive material due to its good pressure-resistance characteristics. This paper presents a flexible tactile sensor with new structure. The sensing mechanism is based on body piezoresistive effect of conductive rubber filled by carbon black. To improve the sensor’s flexibility, there is a smart angle design in the arrangement of the wires in lower electrodes layer. Besides, the force model of the sensor has been described. The simulation results indicate the validity of 3-D force measurement of the sensor.

Soft Areal Tactile Sensor Using Tomography Algorithm

2008 ◽  
Vol 20 (4) ◽  
pp. 628-633 ◽  
Author(s):  
Yo Kato ◽  
◽  
Tomonori Hayakawa ◽  
Toshiharu Mukai ◽  
Keyword(s):  
Inverse Problem ◽  
Electrical Impedance Tomography ◽  
Electrical Impedance ◽  
Tactile Sensor ◽  
Problem Analysis ◽  
Impedance Tomography ◽  
Conductivity Change ◽  
Conductive Rubber ◽  
Pressure Sensitive

Using inverse problem analysis, we designed a soft areal tactile sensor with pressure-sensitive conductive rubber that does not need complex central wiring because we estimate conductivity change, i.e., pressure on the sensor, in the center based on electrical impedance tomography (EIT), i.e., a type of inverse problem analysis. We discuss results demonstrating the sensor's effectiveness.

A Flexible Tactile Sensor Array Based on Pressure Conductive Rubber for Contact Force Measurement and Slip Detection

2016 ◽  
Vol 28 (3) ◽  
pp. 378-385 ◽  
Author(s):  
Yancheng Wang ◽  
◽  
Kailun Xi ◽  
Deqing Mei ◽  
Guanhao Liang ◽  
...  
Keyword(s):  
Contact Force ◽  
Sensor Array ◽  
Force Measurement ◽  
Tactile Sensor ◽  
Prosthetic Hand ◽  
Discrete Wavelet ◽  
Conductive Rubber ◽  
Sensing Material ◽  
Tactile Sensor Array ◽  
Slip Detection

[abstFig src='/00280003/14.jpg' width=""300"" text='A wearable tactile sensor array for three-axis contact force measurement and slip detection in prosthetic hand grasping' ] Using INASTAMOR pressure-conductive rubber as the sensing material, we developed a flexible tactile sensor array to measure three-axis contact force and slip. The sensor array has 9 (3 × 3) sensing units, each consisting of three layers, i.e., a bottom electrode, conductive rubber chips, a top polydimethylsiloxane (PDMS) bump. We detailed the array’s structural design, working principle, and fabrication process. We also characterize the array’s three-axis force measurement performance. The full-scale force measurement ranges and sensitivities in <em>x</em>-, <em>y</em>-, and <em>z</em>-axes are characterized as 5, 5, 20 N and 0.675, 0.677, 0.251 V/N, respectively. The array is mounted on a prosthetic hand for detecting contact force and slip occurrence in grasping. Results showed that the array measures three-axis contact force and detects slippage by using discrete wavelet transformation. The tactile sensor array has potential applications in robot-hand grasping that require simultaneous slip detection and three-axis contact force measurement.

scholarly journals Realization of a fractional-order RLC circuit via constant phase element

2021 ◽  
Author(s):  
Riccardo Caponetto ◽  
Salvatore Graziani ◽  
Emanuele Murgano
Keyword(s):  
Experimental Data ◽  
Carbon Black ◽  
Fractional Order ◽  
Constant Phase Element ◽  
Polymeric Matrix ◽  
Fractional Order Systems ◽  
New Device ◽  
Rlc Circuit ◽  
Simulation Results

AbstractIn the paper, a fractional-order RLC circuit is presented. The circuit is realized by using a fractional-order capacitor. This is realized by using carbon black dispersed in a polymeric matrix. Simulation results are compared with the experimental data, confirming the suitability of applying this new device in the circuital implementation of fractional-order systems.

scholarly journals Slip lines in front of a round notch tip in a pressure-sensitive material

1994 ◽  
Vol 19 (1) ◽  
pp. 29-38 ◽  
Author(s):  
H.-Y. Jeong ◽  
X.-W. Li ◽  
A.F. Yee ◽  
J. Pan
Keyword(s):  
Sensitive Material ◽  
Slip Lines ◽  
Pressure Sensitive ◽  
Notch Tip

Study of the Strain Rate Effect on Cold-Reduced Carbon Steel and Aluminium Alloy with Numerical Simulations

2006 ◽  
Vol 532-533 ◽  
pp. 973-976
Author(s):  
Lin Wang ◽  
Tai Chiu Lee ◽  
Luen Chow Chan
Keyword(s):  
Carbon Steel ◽  
Strain Rate ◽  
Strain Path ◽  
Plastic Material ◽  
Strain Rate Effect ◽  
Rate Effect ◽  
Forming Process ◽  
Risk Area ◽  
Sensitive Material ◽  
Simulation Results

In this paper, the effect of strain rate has been considered in the simulation of forming process with a simple form combined into the material law. Quite a few researchers have proposed various hardening laws and strain rate functions to describe the material tensile curve. In this study, the strain rate model Cowper-Symonds is used with anisotropic elasto-plastic material law in the simulation process. The strain path evolution of certain elements, when the strain rate is considered and not, is compared. Two sheet materials, Cold-reduced Carbon Steel (SPCC) JIS G3141 and Aluminum alloy 6112 are used in this study. Two yield criteria, Hill 48 and Hill 90, are applied respectively to improve the accuracy of simulation result. They show different performance when strain rate effect is considered. Strain path of the elements in the fracture risk area of SPCC (JIS G3141) varies much when the strain rate material law is used. There is only little difference of the strain distribution of Al 6112 when the strain rate effect is included and excluded in the material law. The simulation results of material SPCC under two conditions indicate that the strain rate should be considered if the material is the rate-sensitive material, which provides more accurate simulation results.

Embedded piezoresistive pressure sensitive pillars from piezoresistive carbon black composites towards a soft large-strain compressive load sensor

2019 ◽  
Vol 285 ◽  
pp. 645-651 ◽  
Author(s):  
Harish Devaraj ◽  
Kartik Yellapantula ◽  
Mathilda Stratta ◽  
Andrew McDaid ◽  
Kean Aw
Keyword(s):  
Carbon Black ◽  
Large Strain ◽  
Compressive Load ◽  
Pressure Sensitive ◽  
Load Sensor
Sign in / Sign up

Export Citation Format

Share Document