Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Device and method for measuring speed and vorticity in conductive fluid under strong magnetic field condition

A technology of conductive fluid and strong magnetic field, which is applied in the direction of measuring device, fluid velocity measurement, fluid dynamics test, etc., can solve the problems of space resolution limited permanent magnet, time resolution limited sensor mechanical structure characteristics, etc., and achieve signal Fast response, small measuring point, high accuracy

Pending Publication Date: 2021-04-16
XI AN JIAOTONG UNIV +1
View PDF10 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its spatial resolution is limited by the size of the permanent magnet, and its time resolution is limited by the mechanical structure characteristics of the sensor.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Device and method for measuring speed and vorticity in conductive fluid under strong magnetic field condition
  • Device and method for measuring speed and vorticity in conductive fluid under strong magnetic field condition
  • Device and method for measuring speed and vorticity in conductive fluid under strong magnetic field condition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] The present invention is described in detail below in conjunction with accompanying drawing.

[0037] The invention relates to a method for measuring the local flow field of liquid metal. The measurement object is the potential difference formed by the flow field between the probes. Precision synchronous voltage acquisition system8.

[0038] Taking the metal fluid pipeline flow under the condition of strong magnetic field as an example, the measuring device of the present invention is implemented in the following scenarios, such as figure 1 As shown, the liquid metal mainstream velocity direction is 1, the external magnetic field direction is 2, the rectangular cross-section pipe is 3, and the flow field in the main flow area of ​​the pipe is 4. Mainstream speed 1 is provided by the external circulation loop system. The external uniform magnetic field 2 can be provided by permanent magnets, electromagnets or superconducting magnets, and the uniformity is higher than 9...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a device and a method for measuring speed and vorticity in a conductive fluid under a strong magnetic field condition. The device comprises an immersion type probe capable of moving in a channel, a displacement device for controlling the probe to move, and a multi-channel high-precision synchronous voltage acquisition system connected with a probe potential signal through a shielded wire, based on a potential probe principle, a relationship is established between a potential signal acquired by a probe and a flow velocity, local velocity distribution of a flow field is directly obtained, and vorticity is measured through a potential difference and magnetic field intensity; and through signal acquisition and data processing, the local velocity and vorticity distribution in the liquid metal flow field can be measured with high precision under the condition of an external high-intensity magnetic field, and the problem of high-precision measurement of the local flow field characteristics of the liquid metal under the high-intensity magnetic field is solved.

Description

technical field [0001] The invention belongs to the technical field of fluid measurement, in particular to a device and method for measuring velocity and vorticity in conductive fluid under strong magnetic field conditions. Background technique [0002] The phenomenon of liquid metal flow can be understood as the combination of electromagnetism and fluid dynamics, which contains rich fundamental research significance. In the cladding structure of the magnetic confinement nuclear fusion device, the flow of the metal fluid in the magnetic field is a major research direction. In addition, in some industrial processes, such as the metal smelting process, it is necessary to use an external magnetic field to realize the flow of the metal fluid. flow control. How to realize the accurate measurement of the flow field characteristics of metal fluid under the condition of high temperature and strong magnetic field has always been a severe challenge. Direct measurement of flow veloci...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01M10/00G01P5/08
CPCY02A90/30
Inventor 阳倦成张祥飞吕泽张年梅倪明玖
Owner XI AN JIAOTONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com