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Thermocouple combined type velocity potential probe and measuring method

A technology of velocity potential and thermocouple, applied in the direction of fluid velocity measurement, velocity/acceleration/shock measurement, devices using electric/magnetic methods, etc., can solve problems such as no temperature measurement method, and achieve accurate temperature and velocity reliable effect

Pending Publication Date: 2021-12-21
XI AN JIAOTONG UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] This measurement method only realizes the measurement of any local velocity and vorticity inside the liquid metal, and does not propose a measurement method for any local temperature inside the liquid metal

Method used

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  • Thermocouple combined type velocity potential probe and measuring method
  • Thermocouple combined type velocity potential probe and measuring method
  • Thermocouple combined type velocity potential probe and measuring method

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Embodiment Construction

[0027] The present invention is described in detail below in conjunction with accompanying drawing.

[0028] refer to figure 1 , a thermocouple combined speed potential probe, the overall sheath of the probe is made of brass, the surface is coated with an insulating layer, the probe front end sheath 6 is the part for measuring the potential, including four circumferentially evenly distributed Copper probes 1, 2, 3, 4, and a T-type thermocouple 5 arranged at the center of the probe points of the four copper probes, all copper probes and T-type thermocouples 5 extend beyond the probe front-end shield 6 by about 10 -20mm.

[0029] The shell diameter of the probe rear-end protective shell 7 is 3mm, the diameter of each copper probe is 0.1-0.3mm, and the diameter of the thermocouple is 0.5mm, wherein the first copper probe 1 and the fourth copper probe 4 are in the horizontal direction No distance, the distance in the vertical direction is 1.8-2.8mm; the distance between the seco...

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Abstract

The invention discloses a thermocouple combined type speed potential probe. The probe is characterized in that an integral protective shell of a probe head is made of brass, a surface of the integral protective shell is coated with an insulating layer, and the protective shell at a front end of the probe head is a part for measuring potential. The probe comprises four copper probe bodies which are uniformly distributed in the circumferential direction and a T-shaped thermocouple arranged in the center of probe points of the four copper probe bodies, all the copper probes and the T-shaped thermocouples exceed the probe front end protective shell by 10-20mm. The probe is advantaged in that the thermocouples and a speed measurement probe are welded in a combined mode, measurement signals are unified, the temperature and the speed of any local part of the liquid metal can be obtained at the same time only in a voltage measurement mode, the device makes direct contact with the liquid metal, response is fast, and precision is high.

Description

technical field [0001] The invention relates to the technical field of liquid metal measurement, in particular to a thermocouple combined velocity potential probe and a measurement method. 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. The direct measurement of flow velocity becomes more difficult, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K7/02G01P3/50G01P5/08
CPCG01K7/02G01P3/50G01P5/08
Inventor 阳倦成曹炎武倪明玖吕泽
Owner XI AN JIAOTONG UNIV
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