面向金属裂纹深度检测的无源RFID标签天线传感器  

Passive RFID tag antenna sensor for metal crack depth detection

作　　者：文豪 李强[1] 赵亮[1] 陈建彬 WEN Hao;LI Qiang;ZHAO Liang;CHEN Jianbin(School of Information Engineering,Southwest University of Science and Technology,Mianyang 621010,China)

机构地区：[1]西南科技大学信息工程学院,四川绵阳621010

出　　处：《传感器与微系统》2022年第9期81-83,91,共4页Transducer and Microsystem Technologies

基　　金：四川省科技计划资助项目(2019JDTD0019);国家重点研发计划资助项目(2019YFB1705101)。

摘　　要：金属结构会由于疲劳、应力磨损和环境因素的影响,而产生变形和裂缝。考虑到无损检测与结构健康监测(SHM)领域的传感检测系统存在部署困难,布线机制繁琐,能源提供等问题。设计了一种用于检测金属裂纹深度的无源射频识别(RFID)标签天线传感器,随着金属裂纹深度的增加,标签天线传感器的谐振频率会向低频移动。搭建标签天线传感测试系统,测试结果表明:所设计的标签传感器在检测金属表面裂纹深度方面可达到毫米(mm)级的精度。Metal structures will be deformed and cracked due to fatigue, stress wear and environmental factors.Taking into account the difficulties in deployment of sensor detection systems in the field of non-destructive testing and structural health monitoring(SHM),cumbersome wiring mechanisms, and energy supply issues.A passive radio frequency identification(RFID)tag antenna sensor is designed to detect the depth of metal cracks.As the depth of the metal crack increases, the resonant frequency of the tag antenna sensor will move to low frequencies.A tag antenna sensing test system is built.The test results show that the designed tag sensor can reach millimeter-level accuracy in detecting the depth of cracks on the metal surface.

关 键 词：射频识别 无损检测 传感器 裂纹深度 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TM931[自动化与计算机技术—控制科学与工程]