摘要
研究基于正交解调的科里奥利质量流量计的信号处理方法。提出了表示质量流量信号和噪声的传感器输出信号的模型 ,给出了求解信号频率、幅值和相位差的计算公式 ,研究了两种滤波方式 ,设计了两种信号处理的方案。仿真结果表明 ,该研究方法是有效的。
A quadrature demodulation-based signal processing method of coriolis mass flowmeter is studied. The output signal model of sensors is proposed, which expresses the signal of mass flow and noises. Equations of calculating the frequency, amplitude and phase difference of signals are presented. Two types of filtering modes are studied. Two kinds of signal processing schemes are designed. Simulation results show that the methods studied are effective.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2005年第1期23-27,66,共6页
Chinese Journal of Scientific Instrument
基金
教育部高校骨干教师资助计划项目
