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    【24h】Transit Time Dependent Condition Monitoring of PCBs During Testing for Diagnostics in Electronics Industry

    机译电子行业诊断测试过程中PCB的运输时间相关状态监控

    【摘要】In this paper, a novel planar microwave sensor for nondestructive measurement of strain during testing of printed circuit board (PCBs) is proposed. Planar microstrip patch bridged on both sides with squared split ring resonator is used to measure strain. Measurement of stress of isotropic dielectricmaterials in their linear elastic region that are uses as PCB substrates is also done using the proposed method. The designed microwave probe works at a frequency of 2.45 GHz. The feasibility of the use of time-domain reflectometry method to monitor strain in materials is presented here. The proposed sensor exhibits a sensitivity of about 333 ps for every 1% change in strain. Finite integration technique and real-time measurements have been done to corroborate the relation derived between the transmit time and the strain experienced by the material. The correlation between the simulated and measured strain is about 99.3%. The proposed sensor can be used for faster and accurate testing of PCB substrates without requiring complex calibrations.

    【摘要机译】在本文中,提出了一种新型的平面微波传感器,用于在印刷电路板(PCB)测试过程中无损测量应变。平面微带贴片在两侧桥接有方形裂环谐振器,用于测量应变。还使用所提出的方法来测量各向同性介电材料在用作PCB基板的线性弹性区内的应力。设计的微波探头的工作频率为2.45 GHz。此处介绍了使用时域反射法测量材料中应变的可行性。所提出的传感器对应变的每1%的变化显示约333 ps的灵敏度。已经进行了有限积分技术和实时测量,以证实在传输时间和材料所经历的应变之间得出的关系。模拟应变与测量应变之间的相关性约为99.3%。所提出的传感器可用于对PCB基板进行更快,更准确的测试,而无需进行复杂的校准。

    【作者】Vimal Samsingh Ramalingam;Malathi Kanagasabai;Esther Florence Sundarsingh;

    【作者单位】;

    【年(卷),期】2018(65),1

    【年度】2018

    【页码】553-560

    【总页数】8

    【原文格式】PDF

    【正文语种】eng

    【中图分类】;

    【关键词】Probes;Substrates;Resonant frequency;Strain;Monitoring;Testing;Microwave theory and techniques;

    机译 探头;基板;谐振频率;应变;监测;测试;微波理论与技术;
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