Vortez Signal Processing Method Based on Flow Momentum

摘要：

The amplitude of vortex signal is proportional to the square of the flow rate .It is difficult to track the accurate flow signal from noises at low flow rate. A signal processing method based on flow momentum is introduced in this paper. A group of nonlinear filters with -40dB/dec characteristics are designed to capture the slim vortex signal. This method is realized in combination with another simple comparator channel to process the signal over the whole dynamic range, which is tested to have high accuracy and fast response.

关键词： Vortez flowmeter signal processing non-linear filter

作者: Jie Chen Bin Li Guangyu Dai

作者单位: Department of mechanical engineering and automation,Shanghai University 149#,YanChang Road,Shanghai,China

会议类型: 国际会议

会议名称: 2009 9th International Conference on Electronic Measurement & Instruments(第九届电子测量与仪器国际会议 ICEMI2009)

会议地点: 北京

会议语种:英文

页码: 3678-3680

在线出版日期: 2009-08-16（万方平台首次上网日期，不代表论文的发表时间）