ZHENG Ci-hang1, TANG Gang3, LIU Jing-quan3, et al. Study on energy harvesting using piezoelectric cantilever generator in fluid environments from ultrasonic vibration[J]. 2011, 30(3): 46-49.
ZHENG Ci-hang1, TANG Gang3, LIU Jing-quan3, et al. Study on energy harvesting using piezoelectric cantilever generator in fluid environments from ultrasonic vibration[J]. 2011, 30(3): 46-49. DOI: 10.13873/j.1000-97872011.03.021.
An vibration energy harvester which can work in fluid environments is fabricated.Piezoelectric cantilever structure is adopted.Ultrasonic energy in water is harvested.By changing relative dinection of ultrasonic and cantilever
and salinity weigh percent
it is discovered that generating efficiency in ultrasonic liquid enrironment is reduced with the salinity weight percent increases and the device achieves highest efficiency when the angle between ultrasonic transducer plane and cantilever beam is 45°
6
0°.The output peak-peak voltage reaches 5.04V excited by 32kHz ultrasonic frequency.