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Method, device and storage medium for measuring velocity inside liquid metal

A speed measurement, liquid metal technology, applied in the direction of measuring devices, fluid speed measurement, speed/acceleration/shock measurement, etc., can solve the problems of signal interference, affect the echo signal collection, can not obtain the speed, etc., to improve accuracy, The effect of increasing spatial resolution

Active Publication Date: 2021-09-24
UNIVERSITY OF CHINESE ACADEMY OF SCIENCES +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, due to the small distance between adjacent probes, the signals between the probes interfere with each other, which directly affects the collection of echo signals, and it is easy to fail to obtain the correct speed.

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  • Method, device and storage medium for measuring velocity inside liquid metal
  • Method, device and storage medium for measuring velocity inside liquid metal
  • Method, device and storage medium for measuring velocity inside liquid metal

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Embodiment Construction

[0043] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments of the present application, every other embodiment obtained by those skilled in the art withou...

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Abstract

The present application provides a velocity measurement method, device and storage medium inside liquid metal. The velocity measurement method includes: obtaining the ultrasonic signal emitted by each ultrasonic probe in the ultrasonic probe group in the area to be measured and communicating with each ultrasonic signal The echo signal corresponding to the signal, wherein, any two adjacent ultrasonic probes are at different operating frequencies, based on the ultrasonic signal and the echo signal corresponding to each ultrasonic signal, determine the multiplicity of each ultrasonic signal in the area to be tested The Doppler frequency shift information is based on the determined Doppler frequency shift information of the ultrasonic signal to determine the speed information of the region to be measured. This application solves the problem of mutual interference of ultrasonic signals between the probes by setting adjacent ultrasonic probes to emit ultrasonic waves of different frequencies, which not only improves the accuracy of velocity measurement, but also improves the spatial resolution of velocity measurement Rate.

Description

technical field [0001] The present application relates to the technical field of liquid metal flow measurement, in particular, to a method, device and storage medium for measuring the velocity inside liquid metal. Background technique [0002] The precise measurement of the flow velocity inside liquid metal has always been a research hotspot in the academic circles. The properties of liquid metal such as opacity and high temperature directly limit conventional flow measurement methods, such as particle image velocimetry, laser Doppler velocimetry and other optical methods cannot be applied here. [0003] At present, the ultrasonic Doppler velocimetry method is mainly used to measure the flow velocity inside the liquid metal, and the velocity distribution along the propagation line of the ultrasonic waves emitted by the probes is obtained by using multiple probes closely arranged for measurement. [0004] However, due to the small distance between adjacent probes, the signal...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01P5/24
CPCG01P5/244
Inventor 倪明玖宣益民阳倦成潘定羿
Owner UNIVERSITY OF CHINESE ACADEMY OF SCIENCES