DFT 方法处理科氏流量计信号中关键技术的研究

Research of key technology in signal processing of Coriolis flowmeter with DFT method

本文采用基于傅立叶变换（ＤＦＴ）的频谱分析方法，计算流量信号的频率和相位差。介绍科氏流量计信号处理中测量初始化和频率跟踪等几个关键技术。

This paper presents calculation of frequency and phase difference of flow signals with spectrum analysis on basics of Fourier transform(DFT).It also introduces some key technologies as measurement initialization and frequency tracking in signal processing of Coriolis flowmeter.