Yingli Ding, Yongzhi Cai and Donghao Wu
Vortex flowmeter is a flowmeter based on the principle of fluid vibration. It has the advantages of small pressure loss, wide range, large measurable flow range and high precision. It is widely used in industrial production. This article mainly tells about the calibration and detection process of vortex flowmeter, using standard meter method gas flow standard device or sonic nozzle method gas flow standard device. According to the verification regulation of vortex flowmeter, it describes the working principle of the flowmeter, the requirement of measurement performance, related technical parameters, testing conditions and methods. The flowmeter is measured by the forward blow or blow back method, and the uncertainty and repeatability are obtained by analyzing the data, and the relevant verification certificates are issued.
Vortex Flowmeter, Calibration Device, Measurement Uncertainty, Calibration Certificate