关键词: 压电纤维复合材料;电输出;悬臂梁俘能器

Abstract: The MFCs ( macro fiber composites ) with high solid content , different fiber thicknesses were fabricated by laminating-cutting method.The relationship between MFC 's output performances and structure parameters was studied by changing its spacing between interdigitated electrodes .The results show that the proper increase of the fiber thickness and the decrease of the spacing between interdigitated electrodes are good for the output performance of MFC devices .The resonant frequency can be adjusted by changing MFC`s fiber thickness .The MFC cantilever energy harvester ( the fiber thickness is 0 .3 mm;the spacing between interdigitated electrodes is 0.5 mm) achieve the power of 4.8μW and power density of 18 mW/m2 at the load of 1000 kΩ, and show its good stability on output .

Key words: macro fiber composite;output performance;cantilever energy harvester