涡街流量计的数字信号处理方法

ischarge is one of the processing parameters in research and industry productivity which need to be measured and controlled frequently. There is a closed relationship between the accurate measuring and the quality of the productivity, efficiency and the research. In this paper, we aim to develop a signal processing system of vortex flow-meter, which is based on power-spectrum-analysis. With the change of sampling frequency and the spectrum correction, the measurement accuracy of the system is improved and the volumetric flow rate is obtained accurately. The experiments, including tests of the signal processing system, and calibration of the vortex flow-meter, show that the precision and the rate of measurement are greatly improved.