Design of readout circuit for piezoresistive pressure sensor using nodal array approach reading technique

In this paper, we proposed a new readout circuit in order to improve measurement output while reading the grouped resistive value in matrix array form. The purpose of having this circuit is to overcome the main problem in applying piezoresistive pressure sensor array for foot plantar application. Th...

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Main Authors: Wan Hasan, Wan Zuha, Mohamad Rashidi, Fairuz Rizal, Hamidon, Mohd Nizar, Wahab, Yufridin
Format: Article
Language:English
Published: Universiti Putra Malaysia Press 2017
Online Access:http://psasir.upm.edu.my/id/eprint/55868/
http://psasir.upm.edu.my/id/eprint/55868/1/25-JTS%28S%29-0139-2016-4thProof.pdf
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author Wan Hasan, Wan Zuha
Mohamad Rashidi, Fairuz Rizal
Hamidon, Mohd Nizar
Wahab, Yufridin
author_facet Wan Hasan, Wan Zuha
Mohamad Rashidi, Fairuz Rizal
Hamidon, Mohd Nizar
Wahab, Yufridin
author_sort Wan Hasan, Wan Zuha
building UPM Institutional Repository
collection Online Access
description In this paper, we proposed a new readout circuit in order to improve measurement output while reading the grouped resistive value in matrix array form. The purpose of having this circuit is to overcome the main problem in applying piezoresistive pressure sensor array for foot plantar application. This new approach is called Nodal Array Approach (NAA), a modified version of Wheatstone Bridge Circuit based on nodal analysis technique using Kirchcoff Current Law. The NAA calculates the sensors' resistance values by solving simultaneous equations from reading voltages of the proposed readout circuit. Therefore, it is found that the readout circuit connection is of low complexity as it only uses resistive element as the major component of reading technique with only four iterations involved for each voltage nodes. Through simulation results, it shows that NAA is able to achieve high accuracy in obtaining a sensor's resistance value by adhering to several limitations in order to avoid miscalculation (< 5% average calculation error).
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spelling upm-558682017-07-05T03:37:40Z http://psasir.upm.edu.my/id/eprint/55868/ Design of readout circuit for piezoresistive pressure sensor using nodal array approach reading technique Wan Hasan, Wan Zuha Mohamad Rashidi, Fairuz Rizal Hamidon, Mohd Nizar Wahab, Yufridin In this paper, we proposed a new readout circuit in order to improve measurement output while reading the grouped resistive value in matrix array form. The purpose of having this circuit is to overcome the main problem in applying piezoresistive pressure sensor array for foot plantar application. This new approach is called Nodal Array Approach (NAA), a modified version of Wheatstone Bridge Circuit based on nodal analysis technique using Kirchcoff Current Law. The NAA calculates the sensors' resistance values by solving simultaneous equations from reading voltages of the proposed readout circuit. Therefore, it is found that the readout circuit connection is of low complexity as it only uses resistive element as the major component of reading technique with only four iterations involved for each voltage nodes. Through simulation results, it shows that NAA is able to achieve high accuracy in obtaining a sensor's resistance value by adhering to several limitations in order to avoid miscalculation (< 5% average calculation error). Universiti Putra Malaysia Press 2017 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/55868/1/25-JTS%28S%29-0139-2016-4thProof.pdf Wan Hasan, Wan Zuha and Mohamad Rashidi, Fairuz Rizal and Hamidon, Mohd Nizar and Wahab, Yufridin (2017) Design of readout circuit for piezoresistive pressure sensor using nodal array approach reading technique. Pertanika Journal of Science & Technology, 25 (spec. Feb.). pp. 215-224. ISSN 0128-7680; ESSN: 2231-8526 http://www.pertanika.upm.edu.my/Pertanika%20PAPERS/JST%20Vol.%2025%20(S)%20Feb.%202017/25-JTS(S)-0139-2016-4thProof.pdf
spellingShingle Wan Hasan, Wan Zuha
Mohamad Rashidi, Fairuz Rizal
Hamidon, Mohd Nizar
Wahab, Yufridin
Design of readout circuit for piezoresistive pressure sensor using nodal array approach reading technique
title Design of readout circuit for piezoresistive pressure sensor using nodal array approach reading technique
title_full Design of readout circuit for piezoresistive pressure sensor using nodal array approach reading technique
title_fullStr Design of readout circuit for piezoresistive pressure sensor using nodal array approach reading technique
title_full_unstemmed Design of readout circuit for piezoresistive pressure sensor using nodal array approach reading technique
title_short Design of readout circuit for piezoresistive pressure sensor using nodal array approach reading technique
title_sort design of readout circuit for piezoresistive pressure sensor using nodal array approach reading technique
url http://psasir.upm.edu.my/id/eprint/55868/
http://psasir.upm.edu.my/id/eprint/55868/
http://psasir.upm.edu.my/id/eprint/55868/1/25-JTS%28S%29-0139-2016-4thProof.pdf