Next Article in Journal
Uniaxial Static Stress Estimation for Concrete Structures Using Digital Image Correlation
Previous Article in Journal
Carbon Nanotube/Graphene Nanoplatelet Hybrid Film as a Flexible Multifunctional Sensor
Article Menu
Issue 2 (January-2) cover image

Export Article

Open AccessArticle
Sensors 2019, 19(2), 318; https://doi.org/10.3390/s19020318

Development of a Conductive Polymer Based Novel 1-DOF Tactile Sensor with Cylindrical Arch Spring Structure Using 3D Printing Technology

1
Department of Mechanical Engineering, University of Moratuwa, Katubedda 10400, Sri Lanka
2
Department of Engineering Technology, University of Sri Jayewardenepura, Gangodawila, Nugegoda 10250, Sri Lanka
3
Department of Materials Science and Engineering, University of Moratuwa, Katubedda 10400, Sri Lanka
4
Department of Design, Sapporo City University, Hokkaido 005-0864, Japan
This paper is an extended version of our conference paper published in De Silva, A.H.T.E.; Sampath, W.H.P.; Sameera, N.H.L.; Udayanga, T.D.I.; Amarasinghe, Y.W.R.; Weragoda, V.S.C.; Mitani, A. Design and development of a novel 3D printed 1-DOF tactile sensor with conductive polymer based sensing element. In Proceedings of the 2016 IEEE Sensors, Orlando, FL, USA, 30 October–3 November 2016.
*
Author to whom correspondence should be addressed.
Received: 8 August 2018 / Revised: 16 November 2018 / Accepted: 22 November 2018 / Published: 14 January 2019
(This article belongs to the Section Physical Sensors)
Full-Text   |   PDF [4170 KB, uploaded 17 January 2019]   |  

Abstract

Under this research, a novel tactile sensor has been developed using a conductive polymer-based sensing element. The incorporated sensing element is manufactured by polymer press moulding, where the compound is based on silicone rubber and has enhancements by silica and carbon black, with Silane-69 as the coupling agent. Characteristics of the sensing element have been observed using its sensitivity and range, where its results pose an inherent nonlinearity of conductive polymers. For the force scaling purpose, a novel 3D printed cylindrical arch spring structure was developed for this highly customizable tactile sensor by adopting commonly available ABSplus material in 3D printing technology. By considering critical dimensions of the structure, finite element analysis was carried out to achieve nearly optimized results. A special electrical routing arrangement was also designed to reduce the routing complexities. The optimized structure was fabricated using the 3D printing technology. A microcontroller-based signal conditioning circuit was introduced to the system for the purpose of acquiring data. The sensor has been tested up to the maximum load condition using a force indenter. This sensor has a maximum applicable range of 90 N with a maximum structural deflection of 4 mm. The sensor assembly weighs 155 g and the outer dimensions are 85 mm in diameter and 83 mm in height. View Full-Text
Keywords: sensor phenomena and characterization; sensor structures; springs; tactile sensors; three-dimensional displays; 3D printing sensor phenomena and characterization; sensor structures; springs; tactile sensors; three-dimensional displays; 3D printing
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Sampath, P.; De Silva, E.; Sameera, L.; Udayanga, I.; Amarasinghe, R.; Weragoda, S.; Mitani, A. Development of a Conductive Polymer Based Novel 1-DOF Tactile Sensor with Cylindrical Arch Spring Structure Using 3D Printing Technology. Sensors 2019, 19, 318.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top