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Internal coils have a signal-to-noise ratio (SNR) advantage during magnetic resonance imaging. However, coils with continuous cables are generally unsafe, due to the risk of RF heating. Segmented cables, such as magneto-inductive waveguides, should introduce inherent safety at the price of increased noise, from both the cable and the body. Here, we derive analytical SNR expressions for both types...
In this paper, we investigate elastic impact loading history detection based on polyvinylidene fluoride (PVDF) film sensors and demonstrate its applications on simulating flexible structural responses or investigating dynamic measurement performances of sensors. A pair of PVDF film sensors, bonded collocatedly on two opposite surfaces of a cantilever plate, is used to extract steel ball-generated...
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