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Multi-frequency information fusion continuous wave flow measurement method, device and electronic equipment

A flow measurement and multi-frequency technology, which is applied in the field of ultrasonic flow measurement, can solve the problems of insufficient data utilization and flow accuracy to be improved, so as to achieve the effect of not decreasing the response time and improving the measurement accuracy

Active Publication Date: 2021-06-25
NAT UNIV OF DEFENSE TECH
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Problems solved by technology

[0004] The invention provides a multi-frequency information fusion continuous wave flow measurement method, device and electronic equipment to solve the technical problems that the data utilization in the existing ultrasonic flow measurement method is insufficient and the accuracy of the obtained flow needs to be improved

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  • Multi-frequency information fusion continuous wave flow measurement method, device and electronic equipment
  • Multi-frequency information fusion continuous wave flow measurement method, device and electronic equipment
  • Multi-frequency information fusion continuous wave flow measurement method, device and electronic equipment

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Embodiment Construction

[0059] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0060] Such as figure 1 As shown, a continuous wave flow measurement method for multi-frequency information fusion, including steps:

[0061] S100, calculating the minimum sidetone frequency when the difference between the phase change value of the ultrasonic wave propagating in the upstream direction and the phase change value propagating in the downstream direction in the fluid does not exceed 180° according to the estimated value of the fluid flow;

[0062] S200. Select several sets of sidetone frequencies for measurement and sidetone frequencies for calculation based on the minimum sidetone frequency, wherein each set of sidetone frequencies for calculation is equal to the maximum sidetone...

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Abstract

The invention discloses a multi-frequency information fusion continuous wave flow measurement method, device and electronic equipment. The method includes the steps of: calculating the phase change value of the ultrasonic wave propagating in the fluid along the upstream direction and the phase change value along the downstream direction according to the estimated value of the fluid flow. The minimum sidetone frequency when the difference of the directional propagation phase change value does not exceed 180°; select several groups of sidetone frequencies for measurement and sidetone frequencies for calculation based on the minimum sidetone frequency; Calculate the actual phase difference corresponding to each group of measurement sidetone frequency and calculation sidetone frequency according to the measured phase difference value at the frequency; calculate each group of measurement according to each group of measurement sidetone frequency and its corresponding actual phase difference value The fluid flow corresponding to the sidetone frequency; the average of the fluid flow corresponding to the sidetone frequency for each group of measurements is used to obtain the final fluid flow. While improving the measurement accuracy, the invention can also ensure that the measurement sensitivity does not decrease.

Description

technical field [0001] The invention relates to the field of ultrasonic flow measurement, in particular to a continuous wave flow measurement method, device and electronic equipment with multi-frequency information fusion. Background technique [0002] The ultrasonic flowmeter utilizes the significant difference in the forward and reverse propagation of sound waves in the pipeline flow, and obtains the average flow velocity information of the pipeline by processing the ultrasonic signal, and then predicts the flow rate of the pipeline. Ultrasonic flowmeters have the advantages of not intruding into the measured fluid, having no moving parts, and not affecting fluid flow, so they are widely used in various industrial fields. [0003] In the invention patent with the patent number ZL2015102172276 and the invention title "Ultrasonic flow measurement method and device based on side tone phase measurement", the author proposed an improved side tone phase measurement method to sol...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F1/66
CPCG01F1/66
Inventor 陈勇张若凡綦磊樊程广张翔吴宗谕
Owner NAT UNIV OF DEFENSE TECH
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