| FFT方法在金属有机涂层抗渗性测量中的应用 |
| |
| 引用本文： | 曲生华,杨正宏,史美伦.FFT方法在金属有机涂层抗渗性测量中的应用[J].建筑材料学报,2008,11(3). |
| |
| 作者姓名： | 曲生华 杨正宏 史美伦 |
| |
| 作者单位： | 同济大学,材料科学与工程学院,上海,200092 |
| |
| 摘 要： | 根据在时域中快速Fourier变换(FFT)的原理,应用恒电位仪实现了对各种金属有机涂层抗渗性的低频在线测试,所得结果与传统的应用锁相放大器或频率响应分析仪的高频方法相同,而且,前者快捷高效,不需要使用价值昂贵的频域仪器,为自制现场测试仪器提供了理论依据.
|
| 关 键 词： | 快速Fourier变换 时域 有机涂层 抗渗性 |
Application of FFT Technique in Measurement of Anti-permeability of Organic Coating on Metal |
| |
| QU Sheng-hu,YANG Zheng-hong,SHI Mei-lun.Application of FFT Technique in Measurement of Anti-permeability of Organic Coating on Metal[J].Journal of Building Materials,2008,11(3). |
| |
| Authors: | QU Sheng-hu YANG Zheng-hong SHI Mei-lun |
| |
| Abstract: | Fast Fourier transform(FFT) technique in time domain was applied in the measurement of the anti-permeability of organic coating on metal.In this technique,the frequency range is in the very low frequency region(from 10 Hz to 0.1 Hz).It can be done without expensive lock-in amplifier or frequency response analyzer with the result that the measurement is fast and reliable.The results are in good agreement with those measured at high frequency region by lookin amplifier. |
| |
| Keywords: | fast Fourier transform(FFT) time domain organic coating anti-permeability |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《建筑材料学报》浏览原始摘要信息 |
|
点击此处可从《建筑材料学报》下载全文 |
|
