Single-Line Multi-Channel Flexible Stress Sensor Arrays

Flexible stress sensor arrays, comprising multiple flexible stress sensor units, enable accurate quantification and analysis of spatial stress distribution. Nevertheless, the current implementation of flexible stress sensor arrays faces the challenge of excessive signal wires, resulting in reduced d...

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Main Authors: Jiayi Yang, Yuanyuan Chen, Shuoyan Liu, Chang Liu, Tian Ma, Zhenmin Luo, Gang Ge
Format: Article
Language:English
Published: MDPI AG 2023-08-01
Series:Micromachines
Subjects:
Online Access:https://www.mdpi.com/2072-666X/14/8/1554
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author Jiayi Yang
Yuanyuan Chen
Shuoyan Liu
Chang Liu
Tian Ma
Zhenmin Luo
Gang Ge
author_facet Jiayi Yang
Yuanyuan Chen
Shuoyan Liu
Chang Liu
Tian Ma
Zhenmin Luo
Gang Ge
author_sort Jiayi Yang
collection DOAJ
description Flexible stress sensor arrays, comprising multiple flexible stress sensor units, enable accurate quantification and analysis of spatial stress distribution. Nevertheless, the current implementation of flexible stress sensor arrays faces the challenge of excessive signal wires, resulting in reduced deformability, stability, reliability, and increased costs. The primary obstacle lies in the electric amplitude modulation nature of the sensor unit’s signal (e.g., resistance and capacitance), allowing only one signal per wire. To overcome this challenge, the single-line multi-channel signal (SLMC) measurement has been developed, enabling simultaneous detection of multiple sensor signals through one or two signal wires, which effectively reduces the number of signal wires, thereby enhancing stability, deformability, and reliability. This review offers a general knowledge of SLMC measurement beginning with flexible stress sensors and their piezoresistive, capacitive, piezoelectric, and triboelectric sensing mechanisms. A further discussion is given on different arraying methods and their corresponding advantages and disadvantages. Finally, this review categorizes existing SLMC measurement methods into RLC series resonant sensing, transmission line sensing, ionic conductor sensing, triboelectric sensing, piezoresistive sensing, and distributed fiber optic sensing based on their mechanisms, describes the mechanisms and characteristics of each method and summarizes the research status of SLMC measurement.
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spelling doaj.art-bf2efefc55d4470a8d40965aba67fb892023-11-19T02:13:26ZengMDPI AGMicromachines2072-666X2023-08-01148155410.3390/mi14081554Single-Line Multi-Channel Flexible Stress Sensor ArraysJiayi Yang0Yuanyuan Chen1Shuoyan Liu2Chang Liu3Tian Ma4Zhenmin Luo5Gang Ge6College of Computer Science and Technology, Xi’an University of Science and Technology, Xi’an 710054, ChinaCollege of Computer Science and Technology, Xi’an University of Science and Technology, Xi’an 710054, ChinaDepartment of Materials Science and Engineering, National University of Singapore, Singapore 117583, SingaporeDepartment of Materials Science and Engineering, National University of Singapore, Singapore 117583, SingaporeCollege of Computer Science and Technology, Xi’an University of Science and Technology, Xi’an 710054, ChinaCollege of Safety Science and Engineering, Xi’an University of Science and Technology, Xi’an 710054, ChinaDepartment of Materials Science and Engineering, National University of Singapore, Singapore 117583, SingaporeFlexible stress sensor arrays, comprising multiple flexible stress sensor units, enable accurate quantification and analysis of spatial stress distribution. Nevertheless, the current implementation of flexible stress sensor arrays faces the challenge of excessive signal wires, resulting in reduced deformability, stability, reliability, and increased costs. The primary obstacle lies in the electric amplitude modulation nature of the sensor unit’s signal (e.g., resistance and capacitance), allowing only one signal per wire. To overcome this challenge, the single-line multi-channel signal (SLMC) measurement has been developed, enabling simultaneous detection of multiple sensor signals through one or two signal wires, which effectively reduces the number of signal wires, thereby enhancing stability, deformability, and reliability. This review offers a general knowledge of SLMC measurement beginning with flexible stress sensors and their piezoresistive, capacitive, piezoelectric, and triboelectric sensing mechanisms. A further discussion is given on different arraying methods and their corresponding advantages and disadvantages. Finally, this review categorizes existing SLMC measurement methods into RLC series resonant sensing, transmission line sensing, ionic conductor sensing, triboelectric sensing, piezoresistive sensing, and distributed fiber optic sensing based on their mechanisms, describes the mechanisms and characteristics of each method and summarizes the research status of SLMC measurement.https://www.mdpi.com/2072-666X/14/8/1554pressure sensor arraytactile sensor arrayresonatorsarray integrationsoft sensor arrayforce sensor array
spellingShingle Jiayi Yang
Yuanyuan Chen
Shuoyan Liu
Chang Liu
Tian Ma
Zhenmin Luo
Gang Ge
Single-Line Multi-Channel Flexible Stress Sensor Arrays
Micromachines
pressure sensor array
tactile sensor array
resonators
array integration
soft sensor array
force sensor array
title Single-Line Multi-Channel Flexible Stress Sensor Arrays
title_full Single-Line Multi-Channel Flexible Stress Sensor Arrays
title_fullStr Single-Line Multi-Channel Flexible Stress Sensor Arrays
title_full_unstemmed Single-Line Multi-Channel Flexible Stress Sensor Arrays
title_short Single-Line Multi-Channel Flexible Stress Sensor Arrays
title_sort single line multi channel flexible stress sensor arrays
topic pressure sensor array
tactile sensor array
resonators
array integration
soft sensor array
force sensor array
url https://www.mdpi.com/2072-666X/14/8/1554
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AT yuanyuanchen singlelinemultichannelflexiblestresssensorarrays
AT shuoyanliu singlelinemultichannelflexiblestresssensorarrays
AT changliu singlelinemultichannelflexiblestresssensorarrays
AT tianma singlelinemultichannelflexiblestresssensorarrays
AT zhenminluo singlelinemultichannelflexiblestresssensorarrays
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