Method for measuring mixed gas flow based on PMUT array

The invention provides a method for measuring mixed gas flow based on a PMUT array, and the method comprises the steps: obtaining a data matrix A and a data matrix B based on an ultrasonic flowmeter of the PMUT array, obtaining the concentration of each component in the current mixed gas through the data matrix A, and obtaining the concentration of each component in the current mixed gas through the data matrix B; the current ultrasonic propagation velocity value V flow of the flowing gas is obtained through the data matrix B, then the flow of the current mixed gas is obtained, the flow of the fluid is calculated through multiple sets of data, and the accuracy of fluid flow measurement is improved. 本发明提供一种基于PMUT阵列测量混合气体流量的方法，该测量混合气体流量的方法基于PMUT阵列的超声流量计，获取数据矩阵A和数据矩阵B，通过数据矩阵A获得当前混合气体中各组分的浓度，通过数据矩阵B获得流动气体的当前超声传播速度值V流动，进而求得当前混合气体的流量，通过多组数据计算流体的流量，提高流体流量测量的准确性。