{"title":"CP-Patch-Based Strain Sensor With High Sensitivity for Structural Health Monitoring","authors":"Lingling Wang, K. Chung, Jianlin Luo","doi":"10.1109/ICEICT51264.2020.9334196","DOIUrl":null,"url":null,"abstract":"We propose a newly developed “phase-area method” to gauge the variations of multidirectional strain using a circularly-polarized (CP) patch antenna sensor excited by a proximity-coupled microstrip line in this paper. In order to minimize the physical size of sensor, high-dielectric-constant RO3010 dielectric laminate is used as the substrate for the antenna sensor, thus the sensor owns a small patch size of 17.66mm×18.46mm. A proof-of-concept prototype has been conducted to reveal the principle of multidirectional strain detecting through the concept of orthogonal modes (TM10 & TM01). Very high sensitivities of −106.8 and +71.2 ppm/με have been achieved for the x- and y-directional strain, respectively.","PeriodicalId":124337,"journal":{"name":"2020 IEEE 3rd International Conference on Electronic Information and Communication Technology (ICEICT)","volume":"118 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2020-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2020 IEEE 3rd International Conference on Electronic Information and Communication Technology (ICEICT)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICEICT51264.2020.9334196","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
We propose a newly developed “phase-area method” to gauge the variations of multidirectional strain using a circularly-polarized (CP) patch antenna sensor excited by a proximity-coupled microstrip line in this paper. In order to minimize the physical size of sensor, high-dielectric-constant RO3010 dielectric laminate is used as the substrate for the antenna sensor, thus the sensor owns a small patch size of 17.66mm×18.46mm. A proof-of-concept prototype has been conducted to reveal the principle of multidirectional strain detecting through the concept of orthogonal modes (TM10 & TM01). Very high sensitivities of −106.8 and +71.2 ppm/με have been achieved for the x- and y-directional strain, respectively.
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