Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7133312 | Sensors and Actuators A: Physical | 2018 | 20 Pages |
Abstract
This paper presents the design, fabrication and experimentation of a low power Electromagnetic Energy Harvester (EM-EH) having a broader bandwidth. The proposed prototype exploits the human body motion to generate power for the low profile smart biomedical devices. The working of the proposed EM-EH is illustrated in both laboratory and in the real-time environment. The prototype of EM-EH is fabricated through computer numerical control milling and turning machines. The device is tested in-laboratory at different acceleration levels, and it was inferred that the EM-EH when excited at 3 g induces a maximum voltage of 3800â¯mV at a resonant frequency of 20âHz. The results showed that the device successfully charged a completely discharged 1.5âV(2850mAH) battery within an hour. Additionally, the laboratory experimentation showed that EM-EH is more efficient for a widened operating bandwidth of 70Hz as compared to the conventional devices reported in the literature. Next, the real-time performance of the proposed EM-EH was investigated for harvesting energy from the human body motion such as walking, jogging, and stretching exercise with variable frequency vibrations.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Muneeb Ullah Anjum, Adnan Fida, Iftikhar Ahmad, Adnan Iftikhar,