Transactions of Nanjing University of Aeronautics & Astronautics
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A Wireless Strain Measurement Based on Microstrip Patch Antenna
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Abstract:
Wireless interrogation of rectangular micro-strip patch antenna for strain measurement was investigated by simulations. In order to analyze the antenna performance, a micro-strip line-feeding patch antenna at 10GHz was designed. Then, a patch antenna wirelessly fed by a horn was proposed to measure the strain. The direction information of strain detected by the patch antenna was also taken into consideration. Moreover, the strain can be detected both in width and length direction. It is shown that the strain can be measured wirelessly using a standard horn antenna. This kind of wireless strain sensing technique offers a significant potential for wireless structural health monitoring (SHM), especially for high-end equipment.
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