【摘要】 对传统弦振动实验进行改进,利用LabVIEW的图形化程序设计及数据采集卡的LabVIEW函数调用,编写LabVIEW程序控制采集弦振动信号的数据采集卡,实现弦振动信号的计算机显示,并通过编写LabVIEW程序进行傅里叶变换频谱分析.更多还原

【Abstract】 LabVIEW and data acquisition(DAQ)card were used to improve the string vibration instrument.Owing to the advantages of GUI design and function calls of DAQ,the time-domain signal of string vibration and its FFT frequency analysis result were displayed on a computer.更多还原