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介绍了压电式涡街流量计的工作原理，研究了其检测信号中噪声产生的原因，在分析噪声形成机理的基础上，分别从结构和信号处理角度对压电式涡街流量计噪声进行处理，试验结果表明，它们对测量精度的提高均有明显效果
The working principle of the piezoelectric vortex flowmeter is introduced, the reason of the noise in the detection signal is studied. Based on the analysis of the formation mechanism of the noise, the noise of the piezoelectric vortex flowmeter is analyzed respectively from the view of structure and signal processing Processing, test results show that they have an obvious effect on the improvement of measurement accuracy