A solution for wet gas metering was developed with a vortex meter by using pressure sensors and correlation technology. For the fluctuating pressure measurement, the micro pressure sensors, especially the probe-transducer systems, were designed to acquire reliable vortex signals. For the experiments, an annular mist flow loop with a film metering system was established, and the tests were conducted on various pressure, gas velocity and liquid flowrate conditions. Then, the dimensionless convection velocity, named convection coefficient, and the peak value of the normalized cross-correlation function, named correlation coefficient were calculated. A piecewise function was developed for the convection coefficient with modified Weber number where the segmentation was determined by the correlation coefficient. Finally, the wet gas measurement model was developed and realized by iterative algorithm. Under the present conditions, the ±5% error bands contain 91% of the relative errors for gas flowrate prediction, the mean absolute percentage error is 2.54%, and the uncertainty of gas flowrate prediction is 2.85%. The primary advantage of the proposed method is that the convection coefficient is almost independent of liquid fraction, no extra systems are necessary for watercut measurement, hence providing a cost-effective solution for wet gas metering.

通过使用压力传感器和相关技术，用涡流计开发了一种湿式气体计量解决方案。对于脉动压力测量，微压力传感器，尤其是探头-换能器系统，经设计可获取可靠的涡旋信号。为了进行实验，建立了带有薄膜计量系统的环形雾流回路，并在各种压力，气体速度和液体流速条件下进行了测试。然后，计算无因次对流速度，即对流系数，以及归一化互相关函数的峰值，即相关系数。为对流系数开发了分段函数，对流系数具有修正的韦伯数，其中分段由相关系数确定。最后，开发并通过迭代算法实现了湿气测量模型。在当前条件下，±5％的误差带包含91％的气体流量预测相对误差，平均绝对百分比误差为2.54％，气体流量预测的不确定度为2.85％。所提出方法的主要优点是对流系数几乎与液体分数无关，不需要额外的系统来进行含水率测量，因此为湿气计量提供了一种经济高效的解决方案。