【摘要】 针对传统相位差测量方法精度不高、抗干扰能力差等缺点,将虚拟仪器技术用于信号的相位差测量,介绍了基于图形化编程语言LabVIEW平台上的频谱分析法测量相位差的方法以及相位差计的设计和实现。与传统的硬件电路相位测量方法相比,基于虚拟仪器的相位差测量算法具有测量精度高,抗干扰能力强,电路组成简单等优点。更多还原

【Abstract】 Since the precision and anti-interference ability of traditional phase difference measuring means cannot satisfy the further requirement in many situations,Virtual Instrument technology is applied in phase difference measurement.This paper introduces the method of virtual FFT phase difference measurement based on the platform of graphical programming language-LabVIEW and the realization of phase difference meter.Compared with traditional methods,the algorithm for phase difference measurement based on VI has advantages of high precision and speed,anti-jamming,and simple circuit.更多还原