Disk Bimorph-Type Piezoelectric Energy Harvester

• 作者: K. Abbakumov R. Konovalov V. Tsaplev
• 来源期刊: 电力能源(英文)
• 学科: 数学
• 关键词: PIEZOELECTRIC Energy HARVESTER UMBRELLA BIMORPH Plate Amplitude-Frequency Characteristic FLEXURAL Vibration Specific Power Output Voltage
• 年，卷（期）: 2015,（4）
• 页码范围: 63-68
• 页数: 6页
• 分类号: O1

摘要

The study of the experimental investigation of a disk-type piezoelectric energy harvester presented. The harvester contains disk bimorph piezoceramic element of the umbrella form and contains two disk PZT plates. The element is excited at the base point at its center. The element is supplied by a loading ring mass to decrease its resonance frequency. The dependences of the vibration displacement along the radii of the bimorph and the ring mass from the frequency of excitation are presented and the output voltage frequency response is also presented as well. The idle mode and the load duty are investigated. The value of the internal resistance of the harvester is obtained using the load characteristic. The piezoelectric specific power is estimated experimentally.