Journal of electromagnetic engineering and science

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Analytical Models to Predict Power Harvesting with Piezoelectric Transducer

  • Muppala, Raghava Raju (Daewoo Shipbuilding and Marine Engineering Ltd.) ;
  • Raju, K. Padma (Electronics and Communication Engineering, Jawaharlal Nehru Technological University) ;
  • Moon, Nam-Mee (Graduate School of Venture, Hoseo University) ;
  • Jung, Baek-Ho (Department of Information and Communication Engineering, Hoseo University)
  • Published : 2008.03.31
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Abstract

Advances in low power design open the possibility to harvest energy from the environment to power electronic circuits. Electrical energy can be harvested from piezoelectric transducer. Piezoelectric materials can be used as mechanisms to transfer mechanical energy usually vibrating system into electrical energy that can be stored and used to power other devices. Micro- to milli-watts power can be generated from vibrating system. We developed definitive and analytical models to predict the power generated from a cantilever beam attached with piezoelectric transducer. Analytical models are pin-force method, enhanced pin-force method and Euler-Bernoulli method. Harmonic oscillations and random noise will be the two different forcing functions used to drive each system. It has been selected the best model for generating electric power based upon the analytical results obtained.

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References

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