The efficiency of energy conversion by piezoelectric devices depends upon the quality factor Q, and electromechanical coupling coefficient k2. Efficiency, Q, and k2 were measured for a piezoelectric cantilever and piezoelectric stack, and compared to a model of the efficiency in terms of Q and k2. The model and experiment agree very well.

Volume Subject Area:
Advanced Energy Systems
Keywords:
Piezoelectric power, Electromechanical coupling coefficient, Quality factor, Efficiency
Topics:
Cantilevers, Energy conversion, Q-factor
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 by ASME
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