Next Article in Journal
Conductive Fabric Heaters for Heat-Activated Soft Actuators
Previous Article in Journal
Acknowledgement to Reviewers of Actuators in 2018
Article Menu

Export Article

Open AccessArticle

Piezoelectric Energy Harvesting with an Ultrasonic Vibration Source

1,2,* and 1,2
School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
Singapore-HUJ Alliance for Research and Enterprise (SHARE), Nanomaterials for Energy and Water Nexus (NEW), Campus for Research Excellence and Technological Enterprise (CREATE), Singapore 138602, Singapore
Author to whom correspondence should be addressed.
Actuators 2019, 8(1), 8;
Received: 10 December 2018 / Revised: 4 January 2019 / Accepted: 8 January 2019 / Published: 11 January 2019
PDF [3621 KB, uploaded 11 January 2019]


A piezoelectric energy harvester was developed in this paper. It is actuated by the vibration leakage from the nodal position of a high-power ultrasonic cutting transducer. The harvester was excited at a low displacement amplitude (0.73 µmpp). However, its operation frequency is quite high and reaches the ultrasonic range (24.4 kHz). Compared with another low frequency harvester (66 Hz), both theoretical and experimental results proved that the advantages of this high frequency harvester include (i) high current generation capability (up to 20 mApp compared to 1.3 mApp of the 66 Hz transducer) and (ii) low impedance matching resistance (500 Ω in contrast to 50 kΩ of the 66 Hz transducer). This energy harvester can be applied either in sensing, or vibration controlling, or simply energy harvesting in a high-power ultrasonic system. View Full-Text
Keywords: piezoelectric; ultrasonic; energy harvesting; vibration; actuator piezoelectric; ultrasonic; energy harvesting; vibration; actuator

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Li, T.; Lee, P.S. Piezoelectric Energy Harvesting with an Ultrasonic Vibration Source. Actuators 2019, 8, 8.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Actuators EISSN 2076-0825 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top