摘要
介绍了科里奥利质量流量计基于混频算法的数字信号处理系统,用于测量传感器两路同频信号之间的相位差。该系统使用数字信号处理器(DSP),在固定采样频率下,对经过调理电路、模/数转换(A/D)后的振动传感器信号再经过数字滤波器,进行混频算法,计算得到传感器信号的相位差。
A digital signal processing system based on mixing algorithm for coriolis mass flow meter has been proposed. First, the sensors signal pass through adjusting circuit, A/D circuit, and digital filter. Then, the system adopts DSP which can calculated phase difference of the sensors based on mixing algorithm by fixed sampling rate.
出处
《仪器仪表用户》
2015年第6期62-63,61,共3页
Instrumentation
关键词
混频
科氏质量流量计
相位差
mixing
coriolis mass flow meter
phase difference
