频谱分析压电材料参数的可拓检测  

Extension detection of piezoelectric materials parameters base on spectrum analysis

作　　者：鲍永生[1] 卢荣德[2] 郝绿原[1] 

机构地区：[1]中国科学技术大学材料系,安徽合肥230026 [2]中国科学技术大学物理学院,安徽合肥230026

出　　处：《功能材料》2013年第24期3622-3628,3633,共8页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(60974038)

摘　　要：针对压电材料检测参数精确表征和高效检测问题,建立了频谱分析压电材料响应信号可拓检测体系,为压电材料的需求参数有效而准确的检测开辟了新方法。基于压电材料特有的滤波特性,频谱分析压电材料的可拓检测信号,使其频谱得以最适度展开。根据所展开的频谱图,有效而准确地检测出压电材料样品的特征谐振阻抗及其它需求参数。使得压电材料的特征谐振阻抗检测更为直观,其检测结果准确。且对多信号特征融合激励压电材料参数检测体系试作一般性探讨。To solve the problem of accurate characterization and effective detection of piezoelectric material pa-rameters,an extension detecting system which analyses response signal of piezoelectric material by spectral analysis was put forward.And the system creates a new method which detects the demand parameters of piezo-electric materials effectively and accurately.Based on the unique filter characteristics of piezoelectric materials, the spectrum of piezoelectric material extension detecting signal was analyzed by the most appropriate expansion in frequency.According to the spectrum spread,the characteristic resonant impedance and other demand pa-rameters of piezoelectric materials are detected effectively and accurately.This method makes characteristic res-onant impedance detection of piezoelectric materials intuitively and accurately from the spectrogram.And we try to make a general discussion on multiple signal feature fusion excitation detection system of piezoelectric ma-terial parameters.

关 键 词：压电材料参数 滤波特性 频谱分析 可拓检测 

分 类 号：TM935[电气工程—电力电子与电力传动] TN98[电子电信—信息与通信工程]