Wireless Acoustic Emission Sensor Network for Structural Monitoring | |
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Author | |
Abstract |
The paper presents a prototype wireless system for the detection of active fatigue cracks in aging railways bridges in real-time. The system is based on a small low-cost sensor node, called an AEPod, that has four acoustic emission (AE) channels and a strain channel for sensing, as well as the capability to communicate in a wireless fashion with other nodes and a base station. AEPods are placed at fracture-critical bridge locations. The strain sensor detects oncoming traffic and triggers the AEPod out of its hibernation mode. |
Year of Publication |
2009
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Journal |
IEEE Sensors Journal
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