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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