Design and analysis of piezoelectric energy harvester for laser pointer.
Saved in:
| Title: | Design and analysis of piezoelectric energy harvester for laser pointer. |
|---|---|
| Authors: | Zhou, Tianshuo1 (AUTHOR), Ma, Xinxin1 (AUTHOR), Gong, Lijiao1,2 (AUTHOR), Zhang, Xin1 (AUTHOR), Yao, Fuyuan1 (AUTHOR) |
| Source: | Ferroelectrics. 2022, Vol. 600 Issue 1, p176-191. 16p. |
| Subjects: | Electronic equipment, Energy harvesting, Lasers, Kinetic energy, Energy storage, Piezoelectric transducers, Wireless sensor nodes |
| Abstract: | Obtaining energy from human body activities to power electronic equipment has broad application prospects. In this study, a piezoelectric energy harvesting system is designed to harvest energy from human finger rapping. The harvested energy can drive a laser lamp group to operate. The piezoelectric energy harvester uses a piezoelectric cantilever beam with a spring-mass block at the free end to obtain the kinetic energy of the finger operating a laser pen. The structure can produce considerable bending deformation under finger movement. At the same time, a dual-input synchronized switch harvesting on inductor circuit is designed to extract the charge generated by the piezoelectric beam when the spring-mass block at the free end is rapped and store it in the energy storage element. The charge and discharge of the energy storage element are controlled by a DC-DC management circuit. Experimental results show that the average harvesting power of the piezoelectric energy acquisition system is 169 μW, and its power density is 388.5 μW/cm3. When the spring-mass block is rapped for 8 s, the energy generated by the piezoelectric energy harvester lights the laser pen for 0.35 s. [ABSTRACT FROM AUTHOR] |
| Copyright of Ferroelectrics is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
Be the first to leave a comment!
