Piezoelectric MEMS Energy Harvesters for Powering Sensor Systems

MEMS-Based Piezoelectric Energy Harvesters: Major Design Considerations for Powering Remote Microsystems

Genetic Algorithm Optimization for Mems Cantilevered Piezoelectric Energy Harvesters

A design optimization based on genetic algorithms for increasing power output performance of MEMS piezoelectric cantilevered energy harvesters has been performed. By employing genetic algorithms, the piezoelectric energy scavenging system with optimized shape and lateral geometries of a unimorph cantilever beam and a proof mass is simulated to achieve a power response improvement of ~1.8× in co...

Nickel MEMS Energy Harvesters for the Self-Powering of Vehicular Sensing Systems

MEMS energy harvesters are attracting researchers’ attentions from both academia and industries for the self-powering of sensing systems in vehicular applications. The possibility to convert the power contained in the mechanical vibrations into electrical power offers the possibility to replace traditional wired sensors with wireless devices, to simplify the on-board architecture, increase main...

Sensor Design for Piezoelectric Cantilever Beam Energy Harvesters

Energy harvesting for the purpose of powering low power electronic sensor systems has received explosive attention in the last few years. A common device uses the piezoelectric effect for a cantilever beams at resonance to harvest ambient vibration energy. However most of these devices have a rectangular piezoelectric patch covering all or part of the beam. This paper considers the optimum desi...

Modeling of MEMS piezoelectric energy harvesters using electromagnetic and power system theories

This work proposes a novel methodology for estimating the power output of piezoelectric generators. An analytical model that estimates, for the first time, the loss ratio and output power of piezoelectric generators, based on the direct mechanical-to-electrical analogy, electromagnetic theory, and power system theory, is developed and takes into account the dimensions and material properties of...