Disk Bimorph-Type Piezoelectric Energy Harvester

V. Tsaplev^1,2, R. Konovalov¹, K. Abbakumov¹

¹Department of Electroacoustics and Ultrasonic Engineering, Saint-Petersburg State Electrotechnical University, Saint-Petersburg, Russia.
²Department of Physics, North-West Open Technical University, Saint-Petersburg, Russia.

DOI: 10.4236/jpee.2015.34010                

Abstract

The study of the experimental investigation of a disk-type piezoelectric energy harvester presented. The harvester contains disk bimorph piezoceramic element of the umbrella form and contains two disk PZT plates. The element is excited at the base point at its center. The element is supplied by a loading ring mass to decrease its resonance frequency. The dependences of the vibration displacement along the radii of the bimorph and the ring mass from the frequency of excitation are presented and the output voltage frequency response is also presented as well. The idle mode and the load duty are investigated. The value of the internal resistance of the harvester is obtained using the load characteristic. The piezoelectric specific power is estimated experimentally.

Keywords

Piezoelectric Energy Harvester, Umbrella Bimorph Plate, Amplitude-Frequency Characteristic, Flexural Vibration, Specific Power, Output Voltage

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	Williams, C.B. and Yates, R.B. (1996) Analysis of a Micro-Electric Generator for Microsystems. Sensors and Actuators A: Physical, 52, 8-11. http://dx.doi.org/10.1016/0924-4247(96)80118-X
[2]	Sodano, H., Park, G. and Inman, D.J. (2004) A Review of Power Harvesting from Vibration Using Piezoelectric Materials. The Shock and Vibration Digest, 36, 197-205. http://dx.doi.org/10.1177/0583102404043275
[3]	Anton, S.R. and Sodano, H.A. (2007) A Review of Power Harvesting Using Piezoelectric Materials (2003-2006). Smart materials and Structures, 16, R1-R21. http://dx.doi.org/10.1088/0964-1726/16/3/R01
[4]	Erturk, A. and Inman, D.J. (2011) Piezoelectric Energy Harvesting. John Wiley & Sons Ltd., New York.
[5]	Brailov, E.S. and Vassergisser, M.E. (1980) Evaluation of Flexural Bimorph Disk Piezoelement Characteristics. Akusticheskij Zhurnal, 26, 590-595.
[6]	Antonyak, Yu.T. and Vassergiser, M.E. (1982) Calculated Characteristics of Flexural Membrane Type Piezoelectric Transducer. Akusticheskij Zhurnal, 28, 294-302.
[7]	Tsaplev, V.M. (2013) Nonlinear Acoustoelastisity of Piezoceramic Materials: p. I. Physical Acoustics of Piezoceramics. Saint-Petersburg State Electrotechnical University, Saint-Petersburg.
[8]	Tsaplev, V.M. (2003) Nonlinear Properties and Creep in Piezoceramics. North-West State Technical University, Saint- Petersburg.