An electromagnetic sensing system incorporating multiple probes and single antenna for wireless structural health monitoring
Date
2017Source Title
Proceedings of the 11th European Conference on Antennas and Propagation, EUCAP 2017
Publisher
IEEE
Pages
2568 - 2570
Language
English
Type
Conference PaperItem Usage Stats
235
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248
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Abstract
In this study, a wireless and passive displacement/strain sensing system is proposed for structural health monitoring (SHM). The wireless and passive interrogation of the sensing unit [a variant of a nested split-ring resonator (NSRR)] is achieved through the near-field interaction and electromagnetic coupling between the single antenna in the system and the multiple sensors called the NSRR probes. It is demonstrated that the system can acquire data from more than one NSRR probe simultaneously in a real-life scenario, where the probes are confined within concrete inside a beam, while the antenna monitors them from outside.
Keywords
Displacement sensorMulti-point sensing
Nested split-ring resonator (NSRR)
Simply supported beam experiment
Structural health monitoring (SHM)
Wireless passive sensor
Optical resonators
Simply supported beams
Split ring resonator
Strain sensors