Development of a self-resonant smart energy harvester

https://techxplore.com/news/2023-02-self-resonant-smart-energy-harvester.html

"autonomous resonance tuning (ART) piezoelectric energy harvester autonomously adjusts resonance over broad bandwidth more than 30 Hz according to surrounding environment converting absorbed vibration energy into electrical energy... achieve resonant frequency tuning within two seconds... was mounted on a vehicle... drove wireless positioning device without battery where vibration frequency continuously changed... wireless sensors,including the IOT"

Related:

Researchers print high-performance microcone-array flexible piezoelectric acoustic sensor

https://phys.org/news/2023-03-high-performance-microcone-array-flexible-piezoelectric-acoustic.html

Researchers achieve nonreciprocal frequency conversion with optical and mechanical modes

https://phys.org/news/2023-03-nonreciprocal-frequency-conversion-optical-mechanical.html

Engineers tap into good vibrations to power the Internet of Things

https://uwaterloo.ca/news/media/engineers-tap-good-vibrations-power-internet-things

DARPA is making Nikola Tesla's dream of wireless energy a reality

https://interestingengineering.com/innovation/darpa-laser-power-transfer

This device gathers, stores electricity in remote settings

https://techxplore.com/news/2024-04-device-electricity-remote.html