Optimization Design and Implementation of High Temperature Ultrasonic Flowmeter Converter
Aiming at the design characteristics of the flow measurement system,the research and optimization method based on ultrasonic flowmeter converter is proposed to improve the measurement accuracy of ultrasonic flowmeter and the reliability of the signal processing algorithm The two aspects is optimized in terms of signal conditioning and data processing,improving the amplification and filtering processing of hardware weak echo signals,and optimizing the application of time difference algorithm and mutual correlation algorithm.Through the weight selection and comparison selection methods,the time difference algorithm and the mutual correlation algorithm are combined to process the signal,which improves the accuracy and reliability of the flowmeter.In addition,the temperature compensation algorithm model is used to eliminate the influence of high temperature on the ultrasonic propagation time,which improves the measurement accuracy at high temperature.Test results show that the flow measurement accuracy reaches±1％.The design has a variety of parameters of the fault diagnosis function,which improves the intelligent level of the converter.
Ultrasonic flowmeterFlowmeter converterTemperature compensationSpeed of soundTime difference algorithmMutual correlation algorithm
NETL
NSTL
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