摘要
在分析科氏流量计输出信号特性对测量精度影响的基础上，从信号处理的角度，采用傅里叶频谱分析法，对影响测量精度的诸种因素进行分析处理，着重解决了在应用中的关键问题：用软件实现整周期采样，同时。
The signal processing in Coriolis mass flowmeter is studied. Based on the output signal properties of the flowmeter, the digital processing using the Fourier frequency domain analysis is adopted. The key measurement for improving precision of frequency and phase differences is taken, including raising frequency resolution and using integral periodic signal sampling. The software algorithm for periodic signal sampling is given. The real time sampling is also resolved with the aid of DFT algorithm.
出处
《华中理工大学学报》
CSCD
北大核心
1998年第7期77-79,共3页
Journal of Huazhong University of Science and Technology
关键词
傅里叶变换
科氏流量计
整周期采样
实时算法
Fourier transform
Coriolis mass flowmeter
integral periodic signal sampling
frequency resolution
