Bridges and buildings 'sense' cracks, damage with wireless devices

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Bridges and buildings 'sense' cracks, damage with wireless devices
Imagine a bridge that's able to self-diagnose cracks or a building able to assess its own health after an earthquake, without any help from humans.
Networks of wireless sensors embedded in buildings, roads, bridges and other infrastructure hold that promise. In the first large-scale field test of the technology, University of Michigan researchers in conjunction with Stanford University and the Korean Advanced Institute of Science and Technology found that a wireless network of 14 sensors performed as well as traditional cabled-based monitoring systems.


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