High-FOM Temperature Sensing Based on Hg-EIT-Like Liquid Metamaterial Unit

High-performance temperature sensing is a key technique in modern Internet of Things. However, it is hard to attain a high precision while achieving a compact size for wireless sensing. Recently, metamaterials have been proposed to design a microwave, wireless temperature sensor, but precision is st...

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Main Authors: Jian Li, Yuedan Zhou, Fengwei Peng, Dexu Chen, Chengwei Xian, Pengjun Kuang, Liang Ma, Xueming Wei, Yongjun Huang, Guangjun Wen
Format: Article
Language:English
Published: MDPI AG 2022-04-01
Series:Nanomaterials
Subjects:
Online Access:https://www.mdpi.com/2079-4991/12/9/1395
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author Jian Li
Yuedan Zhou
Fengwei Peng
Dexu Chen
Chengwei Xian
Pengjun Kuang
Liang Ma
Xueming Wei
Yongjun Huang
Guangjun Wen
author_facet Jian Li
Yuedan Zhou
Fengwei Peng
Dexu Chen
Chengwei Xian
Pengjun Kuang
Liang Ma
Xueming Wei
Yongjun Huang
Guangjun Wen
author_sort Jian Li
collection DOAJ
description High-performance temperature sensing is a key technique in modern Internet of Things. However, it is hard to attain a high precision while achieving a compact size for wireless sensing. Recently, metamaterials have been proposed to design a microwave, wireless temperature sensor, but precision is still an unsolved problem. By combining the high-quality factor (Q-factor) feature of a EIT-like metamaterial unit and the large temperature-sensing sensitivity performance of liquid metals, this paper designs and experimentally investigates an Hg-EIT-like metamaterial unit block for high figure-of-merit (FOM) temperature-sensing applications. A measured FOM of about 0.68 is realized, which is larger than most of the reported metamaterial-inspired temperature sensors.
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spelling doaj.art-ebb8432c6d5e45e6b627d10ff06005792023-11-23T08:53:33ZengMDPI AGNanomaterials2079-49912022-04-01129139510.3390/nano12091395High-FOM Temperature Sensing Based on Hg-EIT-Like Liquid Metamaterial UnitJian Li0Yuedan Zhou1Fengwei Peng2Dexu Chen3Chengwei Xian4Pengjun Kuang5Liang Ma6Xueming Wei7Yongjun Huang8Guangjun Wen9School of Information and Communication Engineering, Sichuan Provincial Engineering Research Center of Communication Technology for Intelligent IoT, University of Electronic Science and Technology of China, Chengdu 611731, ChinaSchool of Information and Communication Engineering, Sichuan Provincial Engineering Research Center of Communication Technology for Intelligent IoT, University of Electronic Science and Technology of China, Chengdu 611731, ChinaSchool of Information and Communication Engineering, Sichuan Provincial Engineering Research Center of Communication Technology for Intelligent IoT, University of Electronic Science and Technology of China, Chengdu 611731, ChinaSchool of Information and Communication Engineering, Sichuan Provincial Engineering Research Center of Communication Technology for Intelligent IoT, University of Electronic Science and Technology of China, Chengdu 611731, ChinaSchool of Information and Communication Engineering, Sichuan Provincial Engineering Research Center of Communication Technology for Intelligent IoT, University of Electronic Science and Technology of China, Chengdu 611731, ChinaSchool of Information and Communication Engineering, Sichuan Provincial Engineering Research Center of Communication Technology for Intelligent IoT, University of Electronic Science and Technology of China, Chengdu 611731, ChinaSchool of Information and Communication Engineering, Sichuan Provincial Engineering Research Center of Communication Technology for Intelligent IoT, University of Electronic Science and Technology of China, Chengdu 611731, ChinaGuangxi Key Laboratory of Wireless Wideband Communication and Signal Processing, Guilin University of Electronic Technology, Guilin 541004, ChinaSchool of Information and Communication Engineering, Sichuan Provincial Engineering Research Center of Communication Technology for Intelligent IoT, University of Electronic Science and Technology of China, Chengdu 611731, ChinaSchool of Information and Communication Engineering, Sichuan Provincial Engineering Research Center of Communication Technology for Intelligent IoT, University of Electronic Science and Technology of China, Chengdu 611731, ChinaHigh-performance temperature sensing is a key technique in modern Internet of Things. However, it is hard to attain a high precision while achieving a compact size for wireless sensing. Recently, metamaterials have been proposed to design a microwave, wireless temperature sensor, but precision is still an unsolved problem. By combining the high-quality factor (Q-factor) feature of a EIT-like metamaterial unit and the large temperature-sensing sensitivity performance of liquid metals, this paper designs and experimentally investigates an Hg-EIT-like metamaterial unit block for high figure-of-merit (FOM) temperature-sensing applications. A measured FOM of about 0.68 is realized, which is larger than most of the reported metamaterial-inspired temperature sensors.https://www.mdpi.com/2079-4991/12/9/1395liquid metamaterialtemperature sensingquality factorfigure-of-merit
spellingShingle Jian Li
Yuedan Zhou
Fengwei Peng
Dexu Chen
Chengwei Xian
Pengjun Kuang
Liang Ma
Xueming Wei
Yongjun Huang
Guangjun Wen
High-FOM Temperature Sensing Based on Hg-EIT-Like Liquid Metamaterial Unit
Nanomaterials
liquid metamaterial
temperature sensing
quality factor
figure-of-merit
title High-FOM Temperature Sensing Based on Hg-EIT-Like Liquid Metamaterial Unit
title_full High-FOM Temperature Sensing Based on Hg-EIT-Like Liquid Metamaterial Unit
title_fullStr High-FOM Temperature Sensing Based on Hg-EIT-Like Liquid Metamaterial Unit
title_full_unstemmed High-FOM Temperature Sensing Based on Hg-EIT-Like Liquid Metamaterial Unit
title_short High-FOM Temperature Sensing Based on Hg-EIT-Like Liquid Metamaterial Unit
title_sort high fom temperature sensing based on hg eit like liquid metamaterial unit
topic liquid metamaterial
temperature sensing
quality factor
figure-of-merit
url https://www.mdpi.com/2079-4991/12/9/1395
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