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The Mindlin plate equations have been the primary choice for the analysis of high frequency vibrations of AT- and SC-cut quartz crystal plates in the design of resonators for predictions of vibration frequency, mode couplings, and bias effects. However, the plate equations have to be modified to yield exact solutions in certain frequency range and correction factors are chosen in a systematic manner...
Coupled extensional and flexural vibrations of an ultrasonic piezoelectric transducer are studied in the paper. The ultrasonic piezoelectric transducer is made of piezoelectric polymer PVDF films and modeled as a corrugated cylindrical shell with a finite width in the ridge direction, which consists of multiple pieces of circular cylindrical surfaces smoothly connected along their ridges. The classical...
We propose a system to wirelessly convey electric energy through a thin metal wall. Two piezoelectric transducers are used to realize energy transformation between electric and mechanical, and a rechargeable battery is employed to store the transmitted energy, both are integrated as a system through a modulating circuit. A synchronized switch harvesting on inductor (SSHI) in parallel with the transducer...
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