Uncertainty Evaluation of On-line Measurement Results of External Clamped Ultrasonic Flowmeter
The external clamped ultrasonic flowmeter is a common flow measurement equipment and is widely used in flow measurement.However,the accuracy and reliability of the measured values of the ultrasonic flowmeter are often affected by various factors.In order to ensure the accuracy and reliability of measurement results during the online measurement process of ultrasonic flowmeters under the influence of parameters such as measuring pipeline outer di-ameter,measuring pipeline wall thickness,and measuring liquid flow rate,in accordance with the requirements of the JJG 1030-2007"Verification regulation of ultrasonic flowmeters",for the online measurement process of ultrason-ic flowmeters,the uncertainty of the measurement results of ultrasonic flow meters is divided into multiple parts for dis-cussion,and the uncertainty analysis and evaluation of the measurement results of ultrasonic flowmeters are conduct-ed.And the effectiveness of the method is verified by experiments,and the results show that the test method can ef-fectively evaluate the measurement results of ultrasonic flowmeter and has certain practical value.
external clamped ultrasonic flowmeteronline measurementmeasurement uncertaintyouter diameter of the pipelinewall thickness of the pipelineliquid flow rate
NETL
NSTL
万方数据
维普
