Author:
Lu Xiaozhou,Xie Xi,Gao Qiaobo,Hu Hanlun,Yang Jiayi,Wang Hui,Wang Songlin,Chen Renjie
Abstract
Purpose
The hands of intelligent robots perceive external stimuli and respond effectively according to tactile or pressure sensors. However, the traditional tactile and pressure sensors cannot perform human-skin-like intelligent properties of high sensitivity, large measurement range, multi-function and flexibility simultaneously. The purpose of this paper is to present a flexible tactile-pressure sensor based on hyper-elastics polydimethylsiloxane and plate capacitance.
Design/methodology/approach
With regard to this problem, this paper presents a flexible tactile-pressure sensor based on hyper-elastics PDMS and plate capacitance. The sensor has a size of 10 mm × 10 mm × 1.3 mm and is composed of four upper electrodes, one middle driving electrode and one lower electrode. The authors first analyzed the structure and the tactile-pressure sensing principle of human skin to obtain the design parameters of the sensor. Then they presented the working principle, material selection and mechanical structure design and fabrication process of the sensor. The authors also fabricated several sample devices of the sensor and carried out experiments to establish the relationship between the sensor output and the pressure.
Findings
The results show that the tactile part of the sensor can measure a range of 0.05-1N/mm2 micro pressure with a sensitivity of 2.93 per cent/N and a linearity of 0.03 per cent. The pressure part of the sensor can measure a range of 1-30N/mm2 pressure with a sensitivity of 0.08 per cent/N and a linearity of 0.07 per cent.
Originality/value
This paper analyzes the tactile and pressure sensing principles of human skin and develop an intelligent sensitive human-skin-like tactile-pressure sensor for intelligent robot perception systems. The sensor can achieve to imitate the tactile and pressure function simultaneously with a measurement resolution of 0.01 N and a spatial resolution of 2 mm.
Subject
Electrical and Electronic Engineering,Industrial and Manufacturing Engineering
Reference32 articles.
1. Encoding of direction of fingertip forces by human tactile afferents;The Journal of Neuroscience,2001
2. Analysis of a membrane type polymeric based tactile sensor for biomedical and medical robotic applications;Sensors and Materials,2004
3. An integrated force-position tactile sensor for improving diagnostic and therapeutic endoscopic surgery;Bio-Medical Materials and Engineering,2004
4. Theoretical and experimental analysis of a piezoelectric tactile sensor for use in endoscopic surgery;Sensor Review,2004
5. A forefinger-like tactile sensor for elasticity sensing based on piezoelectric cantilevers;Sensors and Actuators A Physical,2015
Cited by
5 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献