Piezoelectric Energy Harvesting for Bio MEMS Applications

  • William W. Clark
  • Changki Mo


This chapter presents an analysis of piezoelectric unimorph diaphragm energy harvesters as a potential tool for generating electrical energy for implantable biomedical devices. First the chapter discusses current and developing biomedical devices that require energy, and the need for capture of energy from the environment of the implant. Next, a general discussion of piezoelectric harvesters is presented, and a case is made for the use of 31 mode diaphragm harvesters for conversion of energy from blood pressure variations within the body. The chapter then presents derivations of available electrical energy for unimorph diaphragm harvesters, starting with general boundary conditions, and then proceeding to simply supported and clamped conditions of various piezoelectric and electrode coverage. Using these analytical results, the chapter ends with by presenting a brief set of numerical results illustrating the amount of power that could be harvested for a particular size of device, and how that power may be used as a source for a given implanted medical device. In summary, it is shown that the harvester could potencially provide enough power to operate a 10 mW device at reasonable intermittent rates. The relationships provided here may enable other optimal designs to be realized, for medical or for many other applications.


Outer Region Piezoelectric Material Circular Plate Piezoelectric Layer Piezoelectric Element 
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  1. Cain JT, Clark WW, Ulinski D, Mickle MH (2001) Energy harvesting for DNA gene sifting and sorting. International Journal of Parallel and Distributed Systems and Networks, 4(5): 140 149.Google Scholar
  2. Clark WW, Ramsay MJ (2000) Smart material transducers as power sources for MEMS devices. International Symposium on Smart Structures and Microsystems, Hong Kong.Google Scholar
  3. IEEE std. 176 (1978) IEEE Standards on Piezoelectricity, The Institute of Electrical and Electronics Engineers.Google Scholar
  4. Jaffe B, Cook R, Jaffe H (1971) Piezoelectric Ceramics, Academic Press, New York.Google Scholar
  5. Kim S, Clark WW, Wang QM (2005a) Piezoelectric energy harvesting using a bimorph circular plate: analysis. Journal of Intelligent Material Systems and Structures 16(10): 847 854.CrossRefGoogle Scholar
  6. Kim S, Clark WW, Wang QM (2005b) Piezoelectric energy harvesting using a bimorph circular plate: experimental study. Journal of Intelligent Material Systems and Structures 16(10): 855 864.CrossRefGoogle Scholar
  7. Kymissis J, Kendall C, Paradiso J, Gershenfeld N (1998) Parasitic power harvesting in shoes. Second IEEE International Conference on Wearable Computing.Google Scholar
  8. Liu C, Cui T, Zhou Z (2003) Modal Analysis of a Unimorph Piezoelectrical Transducer, Microsystem Technologies 9, pp. 474 479, Springer Verlag.Google Scholar
  9. Mo C, Wright R, Slaughter WS, Clark WW (2006) Behavior of a unimorph circular piezoelectric actuator. Smart Materials and Structures 15:1094 1102.CrossRefGoogle Scholar
  10. Mo C, Radziemski LJ, Clark WW (2007) Analysis of PMN PT and PZT circular diaphragm energy harvesters for use in implantable medical devices. Proceedings of the SPIE Smart Structures and Materials & Nondestructive Evaluation and Health Monitoring Conference, Paper No. 6525 06.Google Scholar
  11. Niu P, Chapman P, Riemer R, Zhang X (2004) Evaluation of motions and actuation methods for biomechanical energy harvesting. 35th Annual IEEE Power Electronics Specialists Conference 2100 2106.Google Scholar
  12. Pelletier F (2004) Inner Space. MPT medicare technology, Wicklow, pp. 32 34.Google Scholar
  13. Platt SR, Farritor S, Garvin K, Haider H (2005) The Use of Piezoelectric Ceramics for Electric Power Generation Within Orthopedic Implants. IEEE/ASME Transactions on Mechatronics 10(4): 455 461.CrossRefGoogle Scholar
  14. Prasad SAN, Sankar BV, Cattafesta LN, Horowitz S, Gallas Q, Sheplak M (2002) Two port electroacoustic model of an axisymmetric piezoelectric composite plate, AIAA 2002 1365, Denver, Colorado.Google Scholar
  15. Sohn JW, Choi SB, Lee DY (2005) An investigation on piezoelectric energy harvesting for MEMS power sources. Proceedings of the IMechE Part C: Journal of Mechanical Engineering Science 219:429 436.Google Scholar
  16. Soykan O (2002) Power sources for implantable medical devices. Business Briefing: Medical Device Manufacturing & Technology 76 79.Google Scholar
  17. Starner T (1996) Human powered wearable computing IBM SYSTEMS Journal 35:618.CrossRefGoogle Scholar
  18. Starner T, Paradiso JA (2004) Human generated power for mobile electronics. In Piguet C (ed) Low Power Electronics Design (Piguet, C. (ed.)) CRC Press, Boca Raton.Google Scholar
  19. Suzuki S, Katane T, Saotome H, Saito O (2002) Electric power generating system using magnetic coupling for deeply implanted medical electronic devices. IEEE Trans. on Magnetics 38(5): 3006 3008.CrossRefGoogle Scholar
  20. Suzuki S, Katane T, Saotome H, Saito O (2003) Fundamental study of an electric power transmission system for implanted medical devices using magnetic and ultrasonic energy. Journal of Artificial Organs 6:145 148.Google Scholar
  21. Vinson JR (1974) Structural Mechanics: The Behavior of Plates and Shells. John Wiley & Sons New York.Google Scholar

Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • William W. Clark
    • 1
  • Changki Mo
  1. 1.University of PittsburghPittsburghUSA

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