Next Article in Journal
Aspartate Aminotransferase and Alanine Aminotransferase Detection on Paper-Based Analytical Devices with Inkjet Printer-Sprayed Reagents
Previous Article in Journal
Study on Improving Thickness Uniformity of Microfluidic Chip Mold in the Electroforming Process
Article Menu

Export Article

Open AccessArticle
Micromachines 2016, 7(1), 5;

Single-Capacitor Electret Impact Microgenerator

Institute of Automation and Electrometry, Russian Academy of Sciences, Siberian Branch, Koptug Prosp. 1, Novosibirsk 630090, Russia
Author to whom correspondence should be addressed.
Academic Editor: Cheng Luo
Received: 29 October 2015 / Revised: 8 December 2015 / Accepted: 25 December 2015 / Published: 15 January 2016
Full-Text   |   PDF [3818 KB, uploaded 15 January 2016]   |  


A new type of electrostatic microgenerator is presented that converts mechanical microvibrational energy into electric energy. The energy conversion mechanism is as follows. External microvibrations are transmitted to the device frame. The thin electret layer sputtered to the silicon substrate surface was fixed on the frame and the moving electrode was fixed by a weak suspension and comes into contact with the electret surface under the action of vibrations. A two-stage impact process is described: coming into contact with the spring stop that models the undulation of the contact surfaces, and direct impact on the electret surface. A numerical modeling of the generator operation is performed and analytic estimates of the generated power are obtained. It is shown that the energy generated by this motor is significantly higher than the energy generated by the classical mechanism based on the excitation of the forced vibrations of the moving plate. Experimental measurements of the microgenerator prototype parameters confirm the results of the theoretical modeling. View Full-Text
Keywords: microgenerator; microvibrations; electrostatics; electret; impact microgenerator; microvibrations; electrostatics; electret; impact

Graphical abstract

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

Baginsky, I.; Kostsov, E.; Sokolov, A. Single-Capacitor Electret Impact Microgenerator. Micromachines 2016, 7, 5.

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]
Micromachines EISSN 2072-666X Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top