摘要
采集了一组放大倍数不同的质子交换膜燃料电池扩散层材料扫描电子显微镜图像,对5种数字图像分形维数计算方法进行研究,以期找出最佳的研究扩散层材料分形维数的计算方法.试验结果表明:盒维法最简单,物理意义明确,计算结果准确,计算时间短.因此采用盒维法测定扩散层分形维数最合适.
A set of scanning electron microscope images of gas diffusion layer (GDL) in proton exchange membrane fuel cell (PEMFC) are gained,which have different magnifications. Five fractal dimension computation methods for digital images are studied to find a suitable method. It is found that the result from the simplest box-counting method is precise,the meaning of box-counting fractal dimension is clear and its calculation time is small. So the most suitable computation method of gas diffusion layer fractal dimension is box-counting method.
出处
《武汉理工大学学报(交通科学与工程版)》
2005年第6期895-898,共4页
Journal of Wuhan University of Technology(Transportation Science & Engineering)
基金
教育部高等学校博士学科点专项科研基金(批准号:20030497012)
湖北省自然科学基金资助(批准号:2003ABA088)