NDLI: Flexible tactile sensor with high sensitivity utilizing botanical epidermal cell natural micro-structures

Content Provider	IEEE Xplore Digital Library
Author	Chien-Chun Chen Pen-Zen Chang Wen-Pin Shih
Copyright Year	2012
Description	Author affiliation: Institute of Applied Mechanics, National Taiwan University, Taipei, Taiwan (Chien-Chun Chen; Pen-Zen Chang) \|\| Department of Mechanical Engineering, National Taiwan University, Taipei, Taiwan (Wen-Pin Shih)
Abstract	This paper presents and demonstrates the development of flexible tactile sensor utilizing the microstructures of onion epidermal cells, which replace the intermediate dielectric layer in a typical parallel-plate capacitive sensor. The onion epidermal cells can effectively reduce the complexity of the sensor structure and thus simplifies the device fabrication process. The single layer of the onion epidermal cells is robust for high tactile sensitivity, mechanical flexibility and optical transmittance with potentially low-cost sensor manufacturing in a large area. The 4 × 4 tactile sensor array with the total area of 20 × 20 $mm^{2}$ is demonstrated. A single tactile sensor has the initial capacitance of 9 pF without applying external pressure. The force ranging from 0 N-2 N (20kPa) is applied for sensor characterization. The sensitivity of the sensor is 0.14/kPa. The fabricated sensor shows high sensitivity and linearity. The proposed sensor array will be applied in robotic electronic skin and biomedical devices in the future.
Starting Page	1
Ending Page	4
File Size	1091154
Page Count	4
File Format	PDF
ISBN	9781457717666
ISSN	19300395
e-ISBN	9781457717673
e-ISBN	9781457717659
DOI	10.1109/ICSENS.2012.6411183
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-28
Publisher Place	Taiwan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Tactile sensors Epidermis Capacitance Force Capacitance measurement Arrays
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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