Applied Mathematics and Nonlinear Sciences
Journal license

Journal

Applied Mathematics and Nonlinear Sciences


Volume
& Issue

Volume 9, Issue 1


Published
on

June 13, 2024


Pages


DOI

Article

Three-dimensional Force Detection and Decoupling of a Flexible Tactile Sensor Array based on Porous Composite Piezoresistive Materials

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Authors

Yang Song Affiliation:
School of Electronic and Information Engineering, Anhui Jianzhu University, Hefei 230009, PR China.
, Ying Zhang Affiliation:
School of Electronic and Information Engineering, Anhui Jianzhu University, Hefei 230009, PR China.
, Feilu Wang Affiliation:
School of Electronic and Information Engineering, Anhui Jianzhu University, Hefei 230009, PR China.
, Xiuli Jiang Affiliation:
School of Electronic and Information Engineering, Anhui Jianzhu University, Hefei 230009, PR China.
and Niuping Sun Affiliation:
School of Electronic and Information Engineering, Anhui Jianzhu University, Hefei 230009, PR China.


Abstract

Flexible piezoresistive sensor array has broad application prospects in human-computer interaction. However, due to the complexity of reality, it is difficult to balance flexibility and perceptual ability in the process of tactile perception. Presented herein is a 4 × 4 matrix of a piezoresistive tactile sensor (TS) that is both pliable and composed of a porous blend of multi-walled carbon nanotubes (MWCNTs) and polydimethylsiloxane (PDMS). This sensor matrix is endowed with characteristics like pliability, consistency, and acute sensitivity, which facilitate its adherence to various shaped surface profiles. It boasts a peak sensitivity of 0.6 kPa−1 and is capable of detecting pressures within a broad spectrum from 0 to 640 kPa. An in-depth examination has been undertaken to assess the TS array's response to pressure, encompassing aspects such as hysteresis and repeatability. In addition to this, a scanning system for the array has been constructed to promptly detect, digitize, and present the pressure applied. A neural network model for three-dimensional force decoupling has been established to analyze the real-time data emanating from the sensor matrix, thereby enabling the precise forecasting of the three-dimensional force exerted upon the array.


Keywords

Flexible tactile sensor array, Three-dimensional force, Neural network, Detection and decoupling, 74A40


Citation

Song, Y., Zhang, Y., Wang, F., Jiang, X., & Sun, N. (2024). Three-dimensional force detection and decoupling of a flexible tactile sensor array based on porous composite piezoresistive materials. Applied Mathematics and Nonlinear Sciences, 9(1). https://doi.org/10.2478/amns-2024-1486

Published by: Engineering Journals

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