摘要
科里奥利质量流量计是一种直接测量质量流量仪表 ,但是 ,该仪表存在的主要问题是信号处理方法不能从含有噪声的信号中准确提取流量信息。为此 ,人们采用基于 DFT方法处理科里奥利质量流量计的信号 ,并且对此信号处理方法进行改进 ,提出一种容易实现和比较准确的频率跟踪方法 。
Coriolis mass flowmeter is a type of the mass flow measuring meters,and one of its main problems is that the precision of its signal processing method is influenced by noises, and DFT based method had been adopted for solving the problem.In this article, the DFT based signal processing method is improved, and a kind of frequency tracking method that is easy to be used and more accurate is proposed, thus the precision of digital signal processing is ensured.
出处
《合肥工业大学学报（自然科学版）》
CAS
CSCD
2000年第6期935-939,943,共6页
Journal of Hefei University of Technology：Natural Science
基金
机械工业技术发展基金资助项目! (97JA2 0 0 4)
