Method for obtaining operating parameters of an ultrasonic flowmeter

By adjusting the transducer frequency and temperature of the ultrasonic flowmeter, an evaluation value model is established to solve the problem of signal quality degradation under high temperature conditions, achieve frequency matching optimization, and improve measurement accuracy and signal quality.

CN120870601BActive Publication Date: 2026-01-13HANGZHOU PENGPU TECH CO LTD
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Patent Information

Application Number
CN202511375884.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-09-25
Publication Date
2026-01-13
Estimated Expiration
2045-09-25

AI Technical Summary

Technical Problem

High-temperature environments significantly affect the performance of ultrasonic flowmeters, leading to signal quality degradation and measurement anomalies. Existing solutions are costly and difficult to implement.

Method used

By adjusting the transducer's operating temperature and frequency at zero flow rate, multiple parameters are obtained, evaluation values ​​are established, the maximum value is found as the preferred frequency, and an analysis model is constructed to optimize frequency matching in real time and counteract the effects of high temperature.

Benefits of technology

Maintaining optimal matching between the drive circuit frequency and the transducer resonant frequency under different temperatures and operating conditions improves signal quality and measurement accuracy while reducing costs.

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Abstract

The present application relates to gas flow rate measurement, and particularly provides a method for obtaining working parameters of an ultrasonic flowmeter, comprising the following steps: A1. adjusting the working temperature and the working frequency of a first transducer at zero flow rate, corresponding multiple frequencies to the same temperature, and a second transducer outputting multiple parameters corresponding to the working temperature and the frequency; A2. obtaining an evaluation value according to the multiple parameters, the evaluation value corresponding to the working temperature and the frequency; A3. finding the maximum value in the multiple evaluation values corresponding to the same temperature, and the frequency corresponding to the maximum value being taken as the preferred frequency corresponding to the working temperature; and A4. establishing a data point and saving the same, the data point comprising the working temperature, the preferred frequency and the evaluation value. The present application has the advantages of accurate measurement and the like.
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