Multidirectional Piezoelectric Vibration Energy Harvester Based on Cam Rotor Mechanism.

ABSTRACT: The techniques that harvest mechanical energy from low-frequency, multidirectional environmental vibrations have been considered a promising strategy to implement a sustainable power source for wireless sensor networks and the Internet of Things. However, the obvious inconsistency in the output voltage and operating frequency among different directions may bring a hindrance to energy management. To address this issue, this paper reports a cam-rotor-based approach for a multidirectional piezoelectric vibration energy harvester. The cam rotor can transform vertical excitation into a reciprocating circular motion, producing a dynamic centrifugal acceleration to excite the piezoelectric beam. The same beam group is utilized when harvesting vertical and horizontal vibrations. Therefore, the pro

SUBMITTER: Jiang X 

PROVIDER: S-EPMC10305283 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature