New tactile sensor for position detection based on distributed planar electric field

2016 ◽  
Vol 242 ◽  
pp. 146-161 ◽  
Author(s):  
Haibin Wu ◽  
Jianpeng Chen ◽  
Yixian Su ◽  
Zhijing Li ◽  
Jinhua Ye
Keyword(s):  
Electric Field ◽  
Tactile Sensor ◽  
Position Detection

scholarly journals A New Flexible Tactile Sensor for Contact Position Detection Based on Refraction of Electric Field Lines

2018 ◽  
Vol 30 (9) ◽  
pp. 1953 ◽  
Author(s):  
Jinhua Ye ◽  
Jianfeng Huang ◽  
Jianpeng Chen ◽  
Haomiao Wang ◽  
Haibin Wu
Keyword(s):  
Electric Field ◽  
Tactile Sensor ◽  
Position Detection ◽  
Field Lines ◽  
Contact Position

scholarly journals A Flexible Tactile Sensor with Irregular Planar Shape Based on Uniform Electric Field

Sensors ◽  
2018 ◽  
Vol 18 (12) ◽  
pp. 4445 ◽  
Author(s):  
Youzhi Zhang ◽  
Jinhua Ye ◽  
Haomiao Wang ◽  
Shuheng Huang ◽  
Haibin Wu
Keyword(s):  
Electric Field ◽  
Tactile Sensor ◽  
Uniform Electric Field ◽  
Conductive Layer ◽  
Conducting Plane ◽  
Ito Film ◽  
Position Detection ◽  
Conductive Line ◽  
Plane Shape ◽  
Contact Position

Tactility is an essential perception for intelligent equipment to acquire external information. It can improve safety and performance during human-machine interactions. Based on the uniqueness theorem of the electrostatic field, a novel flexible film tactile sensor that can detect contact position and be made into any plane shape is proposed in this paper. The tactile sensor included an indium tin oxide (ITO) film, which was uniformly coated on the polyethylene terephthalate (PET) substrate. A specially designed strong conductive line was arranged along the edge of the flexible ITO film, which has weak conductivity. A bias excitation was applied to both ends of the strong conductive line. Through the control of the shape of the strong conductive line, a uniform electric field can be constructed in the whole weak conductive plane. According to the linear relationship between position and potential in the uniform electric field, the coordinate of the contact position can be determined by obtaining the potential of the contact point in the weak conducting plane. The sensor uses a three-layer structure, including an upper conductive layer, an intermediate isolation layer, and a lower conductive layer. A tactile sensor sample was fabricated. The experiment results showed that the principle of the tactile sensor used for the contact position detection is feasible and has certain precision of position detection. The sensor has good flexibility, and can be made into any plane shape, and has only four wires. It is capable of covering large areas of robot arms, and provides safety solutions for most robots.

Handheld Lighting Circuit Detector Based on Alternating Electric Field

2014 ◽  
Vol 519-520 ◽  
pp. 1129-1132
Author(s):  
Feng Juan Wang ◽  
Cheng Ying Gong ◽  
Hui He
Keyword(s):  
Electric Field ◽  
Real Time ◽  
Main Idea ◽  
Testing Time ◽  
Dark Line ◽  
Certification System ◽  
Position Detection ◽  
Alternating Electric Field ◽  
Comparison Circuit

To find the point of failure of dark line will tend to make electricians helpless, so the design of handheld lighting circuits detector is necessary. This article discribes the main idea of probes inducing the alternating electric field around electricity cables[1]. The collected signal in system is processed through the amplification, filtering, comparison circuit and STC12C5A08AD. Finally, real-time display grid numbers and testing time on 12864. The system’s functions include position detection, discrimination, position records and others. The system can well distinguish different cable. After testing and certification, system is reliable, stable and with practical value.

A Novel Three-Axial Force Tactile Sensor Based on the Fringing Effect of Electric Field

2019 ◽  
Vol 55 (9) ◽  
pp. 1-5
Author(s):  
Ying Sun ◽  
Fei Liu ◽  
Zipeng Yuan ◽  
Wenmei Huang ◽  
Bowen Wang
Keyword(s):  
Electric Field ◽  
Axial Force ◽  
Tactile Sensor

scholarly journals Gradient in the electric field for particle position detection in microfluidic channels

Lab on a Chip ◽  
2019 ◽  
Vol 19 (6) ◽  
pp. 1054-1059 ◽  
Author(s):  
Miguel Solsona ◽  
Eiko Y. Westerbeek ◽  
Johan G. Bomer ◽  
Wouter Olthuis ◽  
Albert van den Berg
Keyword(s):  
Electric Field ◽  
New Method ◽  
Microfluidic Channels ◽  
Particle Position ◽  
Position Detection

In this work a new method to track particles in microfluidic channels is presented.

scholarly journals A large-area flexible tactile sensor for multi-touch and force detection using electrical impedance tomography

2021 ◽  
Author(s):  
Xiaojie Wang ◽  
Haofeng Chen ◽  
Gang Ma ◽  
xuanxuan yang ◽  
jialu geng
Keyword(s):  
Single Point ◽  
Tactile Sensor ◽  
Porous Structures ◽  
Large Area ◽  
Force Detection ◽  
Impedance Tomography ◽  
Sensor Material ◽  
Position Detection ◽  
Novel Design ◽  
Elastic Polymer

In this paper, a large-area flexible tactile sensor for multi-touch and force detection based on EIT technology was developed. A novel design of a sensor material made of a porous elastic polymer and ionic liquid was proposed. The proposed conductive flexible materials combining elastic porous structures and conductive liquids provide continuous, linear changes in impedance with respect to touch forces. A deep learning scheme PSPNet based on MobileNet was adopted to postprocess the originally reconstructed images to improve the performance of tactile perception. By using this data-driven method, we can improve the spatial resolution of the tactile sensor to achieve a single-point position detection error of 7.5±4.5 mm without using internal electrodes.

scholarly journals A large-area flexible tactile sensor for multi-touch and force detection using electrical impedance tomography

2021 ◽  
Author(s):  
Xiaojie Wang ◽  
Haofeng Chen ◽  
Gang Ma ◽  
xuanxuan yang ◽  
jialu geng
Keyword(s):  
Single Point ◽  
Tactile Sensor ◽  
Porous Structures ◽  
Large Area ◽  
Force Detection ◽  
Impedance Tomography ◽  
Sensor Material ◽  
Position Detection ◽  
Novel Design ◽  
Elastic Polymer

In this paper, a large-area flexible tactile sensor for multi-touch and force detection based on EIT technology was developed. A novel design of a sensor material made of a porous elastic polymer and ionic liquid was proposed. The proposed conductive flexible materials combining elastic porous structures and conductive liquids provide continuous, linear changes in impedance with respect to touch forces. A deep learning scheme PSPNet based on MobileNet was adopted to postprocess the originally reconstructed images to improve the performance of tactile perception. By using this data-driven method, we can improve the spatial resolution of the tactile sensor to achieve a single-point position detection error of 7.5±4.5 mm without using internal electrodes.

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