Performance comparison of implantable piezoelectric energy harvesters

Changki Mo; Leon J. Radziemski; William W. Clark

doi:10.1117/12.776293

18 April 2008 Performance comparison of implantable piezoelectric energy harvesters

Changki Mo, Leon J. Radziemski, William W. Clark

Proceedings Volume 6928, Active and Passive Smart Structures and Integrated Systems 2008; 69280C (2008) https://doi.org/10.1117/12.776293
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2008, San Diego, California, United States

Abstract

This paper presents experimental results that demonstrate energy generating performance of circular piezoelectric diaphragm harvesters for use in implantable medical devices. The piezoelectric energy generators are designed to transfer internal biomechanical forces into electrical energy that can be stored and used to power other in vivo devices. Such energy harvesters can eliminate complicated procedures for replacement of batteries in active implants by possibly increasing the longevity or capacity of batteries. Experimental results indicated that the PZT circular diaphragm harvesters generated enough power to meet requirements for specific implantable medical devices. It is also found that edge condition, thickness of bonding layer, and a degree of symmetry in fabrication for the unimorph circular diaphragms affect the energy generating performance significantly.

Citation Download Citation

Changki Mo, Leon J. Radziemski, and William W. Clark "Performance comparison of implantable piezoelectric energy harvesters", Proc. SPIE 6928, Active and Passive Smart Structures and Integrated Systems 2008, 69280C (18 April 2008); https://doi.org/10.1117/12.776293

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