This paper presents an experimental comparison of energy generating performance between piezoelectric harvesters for use in a pressure-loaded system. The energy harvesters in this study are simply-supported, partially covered piezoelectric unimorph circular diaphragms to capture and transfer biomechanical energy into electrical power for implantable medical devices. Experimental results indicate that both PMN-PT and PZT harvesters can generate useful power that might meet requirements for specific implants under the uniform cyclic pressure loading of 40mmHg blood pressure variation, but the PMN-PT harvester demonstrates over twice the power generating performance of the PZT harvester under the same pressure loading condition.
- Aerospace Division
Energy Harvesting With Piezoelectric Unimorph Circular Diaphragms
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Mo, C, Clark, WW, & Radziemski, LJ. "Energy Harvesting With Piezoelectric Unimorph Circular Diaphragms." Proceedings of the ASME 2008 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. Smart Materials, Adaptive Structures and Intelligent Systems, Volume 1. Ellicott City, Maryland, USA. October 28–30, 2008. pp. 365-370. ASME. https://doi.org/10.1115/SMASIS2008-464
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