The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper reports a new design with dual resonant structure which is more efficient than single resonant devices for random vibration energy harvesting. The dual resonant structure consists of two spring-mass subsystems, which exhibits strong coupling when the two masses collide with each other. Experiments with piezoelectric elements show that the energy harvesting device with dual resonant structure...
This paper reports a biresonant structure of piezoelectric energy harvester (PEH), which consists of two cantilevers with resonance frequencies of 15Hz and 22Hz, The vibration amplitudes of two cantilever-mass structures produce strongly coupling with increase of acceleration. The experimental results show that the operating bandwidth is broadened to 14Hz (14Hz–28Hz) at the acceleration of 1g(1g=9...
This paper presents the design and testing of a wideband electrostatic energy harvester. The vibration amplitudes of two cantilever-mass structures produce strongly coupling when two cantilevers is very close caused by the external acceleration. Therefore, the output power up to 22–35 µW can be achieved at acceleration value of 4.5 m/s2 in an external vibration frequency range from 42 Hz to 50 Hz,...
Energy harvesting technology provides a promising choice to replace the batteries used in modern wearable devices. This paper describes new kind of piezoelectric energy harvesting devices aiming for high power output at low frequency with broad bandwidth. By accessing the performance of the device at different frequencies, we have demonstrated two energy harvesting devices with power output at 10...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.