基于VC++的SPM系统中PVDF振动梁谐振频率扫描  

Frequency Sweep of PVDF Membrane Vibration in SPM Based on VC++

作　　者：盛秀丽[1] 黄强先[1] 石楠[1] 余惠娟[1] 魏晋鹏[1] 

机构地区：[1]合肥工业大学

出　　处：《工具技术》2011年第4期88-91,共4页Tool Engineering

基　　金：国家自然科学基金资助项目(50975075);博士点基金(博导类)资助项目(20100111110011)

摘　　要：为了快速、准确地得到扫描探针显微镜系统(SPM)中PVDF薄膜振动梁的谐振频率,基于VC++环境,提出了一种以TFG2006G型DDS函数信号发生器为被控源的自动完成频率扫描的方法。首先,根据PVDF薄膜的压电效应介绍了其在SPM系统中的工作特性。其次,以信号发生器为被控激励源给出了扫频程序的功能及实现模式。最后,给出频率扫描实验结果。实验表明这种方法达到了快速、准确扫频的目的。In order to obtain the resonance frequency of PVDF membrane vibration beam in SPM quickly and accurately,based on VC＋＋ tool,a method for frequency sweeping automatically is proposed by taking TFG2006G type DDS function generator as controlled source.First,the membrane＇s operating characteristics in SPM according to its piezoelectric effect are presented.Then the function and implementation pattern of the sweeping procedures are given.Finally,the experimental data from the frequency sweep procedures is described as well.Experiments show that the sweeping purpose of rapid speed and accuracy is achieved.

关 键 词：频率扫描 PVDF压电振动梁 VC++ 

分 类 号：TG519.1[金属学及工艺—金属切削加工及机床]