摘要
针对传统仪器存在的测量方法精度不高、运算速度慢、设备昂贵等缺点,文中基于虚拟仪器平台,利用快速傅里叶变换(FFT)算法来测量信号的相位差,以达到节约成本且测量结果更加精确的目的。实验结果说明基于LabVIEW测量相位差具有良好的实时性和准确度。
Existence of the traditional instruments measuring method accuracy is not high,the speed is slow and the instrument is expensive,this paper based on virtual instrument,the use of Fast Fourier Transform（FFT）algorithms to measure the phase difference signal.It is proved that not only the results is more accurate,but also requirements of the hardware circuit is greatly reduced and saved costs.
出处
《电子测量技术》
2010年第6期79-81,共3页
Electronic Measurement Technology
基金
甘肃省自然科学基金资助项目(2007-GS04794)
关键词
虚拟仪器
相位差
FFT
virtual instrument
phase difference
FFT
