{"title":"用于铁磁钢测量的高温柔性双线圈 EMAT 性能分析","authors":"Bao Liang;Weige Tao;Cailing Huo;Zhigang Sun","doi":"10.1109/JSEN.2024.3471814","DOIUrl":null,"url":null,"abstract":"The electromagnetic acoustic transducer (EMAT), which uses a flexible dual-coil configuration, can be easily applied for noncontact ultrasonic testing of curved structures and objects with narrow inspection space. In this article, the high-temperature performance of a flexible dual-coil EMAT on ferromagnetic steel measurement is analyzed. The flexible dual-coil EMAT consists of an electromagnetic (EM) coil, an eddy-current (EC) coil, and a test specimen. First, the working principle and transduction mechanism in ferromagnetic steel by the designed dual-coil EMAT are analyzed. Then, a finite element model of the designed dual-coil EMAT is established, and the magnetic field and acoustic field distribution of the EM coil are simulated. Finally, a high-temperature experimental platform of flexible dual-coil EMAT is built, and the relationship between the designed EMAT’s received signal waveform and the temperature is analyzed. The results show that the designed EMAT allows the measurement of ferromagnetic steels between \n<inline-formula> <tex-math>$25~^{\\circ }$ </tex-math></inline-formula>\nC and \n<inline-formula> <tex-math>$770~^{\\circ }$ </tex-math></inline-formula>\nC without physical coupling or active cooling.","PeriodicalId":447,"journal":{"name":"IEEE Sensors Journal","volume":"24 22","pages":"36560-36568"},"PeriodicalIF":4.3000,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Performance Analysis of High-Temperature Flexible Dual-Coil EMAT for Ferromagnetic Steel Measurement\",\"authors\":\"Bao Liang;Weige Tao;Cailing Huo;Zhigang Sun\",\"doi\":\"10.1109/JSEN.2024.3471814\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The electromagnetic acoustic transducer (EMAT), which uses a flexible dual-coil configuration, can be easily applied for noncontact ultrasonic testing of curved structures and objects with narrow inspection space. In this article, the high-temperature performance of a flexible dual-coil EMAT on ferromagnetic steel measurement is analyzed. The flexible dual-coil EMAT consists of an electromagnetic (EM) coil, an eddy-current (EC) coil, and a test specimen. First, the working principle and transduction mechanism in ferromagnetic steel by the designed dual-coil EMAT are analyzed. Then, a finite element model of the designed dual-coil EMAT is established, and the magnetic field and acoustic field distribution of the EM coil are simulated. Finally, a high-temperature experimental platform of flexible dual-coil EMAT is built, and the relationship between the designed EMAT’s received signal waveform and the temperature is analyzed. The results show that the designed EMAT allows the measurement of ferromagnetic steels between \\n<inline-formula> <tex-math>$25~^{\\\\circ }$ </tex-math></inline-formula>\\nC and \\n<inline-formula> <tex-math>$770~^{\\\\circ }$ </tex-math></inline-formula>\\nC without physical coupling or active cooling.\",\"PeriodicalId\":447,\"journal\":{\"name\":\"IEEE Sensors Journal\",\"volume\":\"24 22\",\"pages\":\"36560-36568\"},\"PeriodicalIF\":4.3000,\"publicationDate\":\"2024-10-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE Sensors Journal\",\"FirstCategoryId\":\"103\",\"ListUrlMain\":\"https://ieeexplore.ieee.org/document/10706789/\",\"RegionNum\":2,\"RegionCategory\":\"综合性期刊\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Sensors Journal","FirstCategoryId":"103","ListUrlMain":"https://ieeexplore.ieee.org/document/10706789/","RegionNum":2,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
摘要
采用柔性双线圈结构的电磁声换能器(EMAT)可方便地用于对曲面结构和检测空间狭窄的物体进行非接触式超声波检测。本文分析了柔性双线圈 EMAT 在铁磁钢测量中的高温性能。柔性双线圈电磁超声探伤仪由电磁(EM)线圈、涡流(EC)线圈和试样组成。首先,分析了所设计的双线圈电磁传感器在铁磁钢中的工作原理和传导机制。然后,建立了设计的双线圈电磁超声衰减器的有限元模型,并模拟了电磁线圈的磁场和声场分布。最后,建立了柔性双线圈电磁超声衰减器的高温实验平台,并分析了所设计的电磁超声衰减器接收信号波形与温度之间的关系。结果表明,所设计的电磁超声波探头可以在 25~^{\circ }$ C 和 770~^{\circ }$ C 之间测量铁磁性钢材,而无需物理耦合或主动冷却。
Performance Analysis of High-Temperature Flexible Dual-Coil EMAT for Ferromagnetic Steel Measurement
The electromagnetic acoustic transducer (EMAT), which uses a flexible dual-coil configuration, can be easily applied for noncontact ultrasonic testing of curved structures and objects with narrow inspection space. In this article, the high-temperature performance of a flexible dual-coil EMAT on ferromagnetic steel measurement is analyzed. The flexible dual-coil EMAT consists of an electromagnetic (EM) coil, an eddy-current (EC) coil, and a test specimen. First, the working principle and transduction mechanism in ferromagnetic steel by the designed dual-coil EMAT are analyzed. Then, a finite element model of the designed dual-coil EMAT is established, and the magnetic field and acoustic field distribution of the EM coil are simulated. Finally, a high-temperature experimental platform of flexible dual-coil EMAT is built, and the relationship between the designed EMAT’s received signal waveform and the temperature is analyzed. The results show that the designed EMAT allows the measurement of ferromagnetic steels between
$25~^{\circ }$
C and
$770~^{\circ }$
C without physical coupling or active cooling.
期刊介绍:
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