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Magnetic control micro-pipeline

A micro-pipe and magnetron technology, applied in the field of micro-pipes, can solve the problems of inconvenient application of micro-fluidics, inconvenient micro-pipe diameter or conduction characteristics, etc., and achieve the effects of simple operation and high control precision.

Inactive Publication Date: 2020-12-18
刘翡琼
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditionally, after the preparation of the microchannel, the diameter or conduction characteristics of the microchannel cannot be adjusted, which is inconvenient for the application of microfluidics

Method used

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Experimental program
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Effect test

Embodiment 1

[0020] The invention provides a magnetically controlled micropipe. Such as figure 1 As shown, the magnetron micropipe includes an electromagnet 1 , a first iron yoke 2 , a second iron yoke 3 , and a magnetostrictive material part 4 . Two ends of the electromagnet 1 are respectively connected to one end of the first iron yoke 2 and one end of the second iron yoke 3 . The electromagnet 1 is used to generate a magnetic field, and the magnetic field generated by the electromagnet 1 can be adjusted by changing the current. The first iron yoke 2 and the second iron yoke 3 are used to conduct the magnetic field. Two ends of the magnetostrictive material part 4 are respectively fixedly connected to the other end of the first iron yoke 2 and the other end of the second iron yoke 3 . The material of the magnetostrictive material portion 4 is a magnetostrictive material. Holes are provided in the magnetostrictive material portion 4 to form micro-pipes 5 . Such as figure 1 As shown,...

Embodiment 2

[0024] On the basis of Example 1, such as figure 2 As shown, a protrusion 6 is provided on the wall of the microchannel 5 . The material of the protrusion 6 is a magnetostrictive material. There are two protrusions 6 . The two protrusions 6 are arranged opposite to each other, and the direction of the line connecting the two protrusions 6 is the diameter direction of the micropipe 5 . The connection direction of the two protrusions 6 is parallel to the connection direction of the first iron yoke 2 and the second iron yoke 3 . The two protrusions 6 are not in contact. That is, if figure 2 As shown, the connecting line direction of the two protruding parts 6 is the horizontal direction, and the connecting line of the two protruding parts 6 is the diameter of the circular micropipe 5, and this direction is exactly under the action of the magnetic field, and the magnetostrictive material part 4 elongates or the direction of shrinkage. In this way, when the magnetic field i...

Embodiment 3

[0027] On the basis of Embodiment 1, the wall of the microchannel 5 is gear-shaped. In this way, when the magnetic field in the magnetostrictive material part 4 changes, the morphology of the wall of the micropipe 5 is changed more. Since the adsorption between the fluid in the microchannel 5 and the wall of the microchannel 5 is closely related to the shape of the wall of the microchannel 5, when the shape of the wall of the microchannel 5 changes, the conduction characteristics of the microchannel 5 will change more , so as to achieve higher sensitivity regulation of the conduction characteristics of the micropipe 5 .

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Abstract

The invention relates to the technical field of micro-pipelines, and particularly provides a magnetic control micro-pipeline which is characterized in that two end faces of an electromagnet are respectively connected with one end of a first iron yoke and one end of a second iron yoke, two ends of a magnetostriction material part are respectively and fixedly connected with the other end of the first iron yoke and the other end of the second iron yoke, and a hole is formed in the magnetostriction material part; a micro-pipeline is formed, wherein the direction of the micro-pipeline is perpendicular to the direction of a connecting line of the first iron yoke and the second iron yoke. During application, the electromagnet generates a magnetic field, the magnetic field of the magnetostrictionmaterial part is changed through the first iron yoke and the second iron yoke, and the magnetostriction material part generates a magnetostriction effect, so that the shape and the sectional area of the micro-pipeline are changed, and the conduction characteristic of the micro-pipeline is changed. The magnetic control micro-pipeline has the advantages of being easy to operate and high in control precision.

Description

technical field [0001] The invention relates to the technical field of micropipes, in particular to a magnetically controlled micropipe. Background technique [0002] Microchannels have important applications in the fields of chemistry, biology, and medicine. Traditionally, after the preparation of microchannels, the diameter or conduction characteristics of microchannels cannot be adjusted, which is inconvenient for the application of microfluidics. Contents of the invention [0003] In order to solve the above problems, the present invention provides a magnetic control micropipe, comprising: an electromagnet, a first iron yoke, a second iron yoke, and a magnetostrictive material part, and the two ends of the electromagnet are respectively connected to one end of the first iron yoke and one end of the second iron yoke, and the two ends of the magnetostrictive material part are respectively fixedly connected with the other end of the first iron yoke and the other end of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D7/06
CPCG05D7/0635
Inventor 不公告发明人
Owner 刘翡琼
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