Unpowered Wireless Ultrasound Generation and Sensing for Structural Health Monitoring of Composites 机翻标题: 暂无翻译,请尝试点击翻译按钮。

会议集名/来源
2018 IEEE International Conference on Prognostics and Health Management: IEEE International Conference on Prognostics and Health Management (ICPHM), 11-13 June 2018, Seattle, WA, USA
出版年
2018
页码
1-5
会议地点
Seattle
作者单位
Signal Processing Inc., Rockville, MD, USAU. Texas at Arlington, Arlington, TX, USAU. Texas at Arlington, Arlington, TX, USASignal Processing Inc., Rockville, MD, USA
作者
Chiman Kwan;Haiying Huang;Md Mazharul Islam;Bulent Ayhan
摘要
Composite structures are strong and light weight, and have great potential in enhancing the structural strength of Unmanned Air Vehicles (UAVs). In this research, we present some preliminary results of structural health monitoring (SHM) for composite structures using an unpowered wireless ultrasound system. First, we have built a testbed, which consists of ultrasonic sensors, composite specimens, and data acquisition electronics. Second, we have performed extensive experiments to collect data. An 8-sensor array was used to detect and localize defects in composite plates. Third, we have implemented defect detection and localization algorithms. We have shown that, with an 8-sensor array, we can detect and localize small defects. Fourth, we have performed an experiment to demonstrate that wired and wireless data matched well both in time domain and in frequency domain.
机翻摘要
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关键词
Wireless communication;Ultrasonic imaging;Wireless sensor networks;Surface acoustic waves;Sensor phenomena and characterization;Monitoring
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