风力发电塔作为一类特殊的高柔结构,顶部支撑的风机在工作状态下对塔身产生动态激励,目前的风电塔振动实测通常采用接触式传感器.为发展风电塔现场非接触测试技术,本文对激光遥测方法进行阐述,利用加速度计和激光遥测设备对某1.5 MW风电塔进行环境脉动激励下的动力实测,对两种仪器的现场使用及测试结果进行对比,分析遥测方法的优势.利用得到的多组实测信号,分别采用峰值拾取法和随机子空间识别法进行分析处理,获得该风电塔的自振频率

第一部分 电阻电路的分析 第二部分 动态电路的分析 第三部分 正弦稳态分析

The Economic Case for Electrochemical Innovation New Horizons in Electrochemical Science and Technology. National Academy Press: Washington, D.C., 1986. copyright P.A.Mabrouk, 2001. All rights

Desired voltage achieved by anode cathode stacking cells (in series) Fuel reformer Natural gas, alcohol

UME's- Advantages Reduced capacitance Low ir drop

山西师范大学：《现代电化学分析》课程教学大纲（化学专业）

Q: What Experiment is This? Excitation Name of experimenttype of excitation time

华北理工大学：《电化学分析实验》课程教学大纲

General Approach to Electrochemical Experiments Identify assumptions Ditusion- ass tran sort +Identify suitable boundary conditions Solye linear diffusion equation (Fick's 2nd law -use Laplace transtorm

Net flow of electrons from MNet flow of electrons from to solute solute to m .Ef more negative than Eredox more positive than Eredox more cathodic more anodic