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Gallium solenoid micro-coil with circular cross section based on bonding of capillary tube and double-faced adhesive tape and preparation method of micro-coil

A technology of micro coil and double-sided tape, applied in the direction of comprehensive factory control, comprehensive factory control, electrical program control, etc., can solve the problems of high production cost and high process complexity of solenoid micro coil, and achieve high process complexity. Effect

Inactive Publication Date: 2014-12-10
YANCHENG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fabrication method of gallium solenoid micro-coils with a circular cross-section based on capillary and double-sided adhesive bonded by the present invention can be used without sacrificing high-field applications or accurately distinguishing samples with similar transverse relaxation times to PDMS , effectively solve the problems of high process complexity and high production cost of existing solenoid micro-coils

Method used

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  • Gallium solenoid micro-coil with circular cross section based on bonding of capillary tube and double-faced adhesive tape and preparation method of micro-coil

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as figure 1 As shown, a gallium solenoid micro-coil with a circular cross section based on capillary and double-sided adhesive bonding, the micro-coil includes a three-layer structure, from the inside to the outside is the capillary inner layer (10), double-sided adhesive The middle layer (20) and the double-sided adhesive outer layer (30), a sample cavity (11) is opened on the capillary inner layer (10), and a solenoid micro-coil cavity (21) is opened on the double-sided adhesive middle layer (20). ), a first pad cavity (31) and a second pad cavity (32) are opened on the double-sided adhesive outer layer (30).

[0029] The above-mentioned capillary inner layer (10), double-sided adhesive middle layer (20) and double-sided adhesive outer layer (30) are all coaxial and hollow cylinders, and when assembled, the capillary inner layer (10) ) is attached to the inner surface of the double-sided adhesive middle layer (20), and the outer surface of the double-sided adhes...

Embodiment 2

[0037] A method for manufacturing a gallium solenoid micro-coil of circular cross-section based on capillary and double-sided adhesive bonding, comprising the following steps:

[0038] First select a capillary with a specified size, and clean the inner and outer surfaces of the capillary inner layer (10), then install the inner capillary on the rotary table and fix it;

[0039] Then, glue and wrap the outer surface of the capillary inner layer (10) with double-sided adhesive to form the middle layer of double-sided adhesive (20), and then move it into the laser cutting machine, and then direct the laser beam to irradiate the middle layer (20) containing the double-sided adhesive the vertical plane of the central axis;

[0040] Then, while rotating the rotary table at a constant speed, move the laser beam from left to right or from right to left at a constant speed to form a solenoid micro-coil cavity (21), and stop the rotation of the rotary table and the irradiation of the la...

Embodiment 3

[0045] In the actual application of microfluidic NMR detection based on the gallium solenoid micro-coil with a circular cross-section bonded by capillary and double-sided adhesive, firstly, insert the inlet and outlet tubes at the left and right ends of the sample chamber (11), and then insert the inlet and outlet tubes at both ends The joint is sealed, and then the liquid sample is injected into the sample cavity (11);

[0046] Then, insert the signal wire and the ground wire in the tuning matching circuit into the uncooled first pad cavity (31) and the second pad cavity (32) containing the liquid metal gallium, and after the liquid metal gallium is cooled, Connect to the network analyzer through a non-magnetic coaxial cable, and adjust the non-magnetic variable tuning capacitor and non-magnetic variable matching capacitor with a non-magnetic flat-blade screwdriver. Solenoid microcoil tuned to 50 Ω;

[0047] Then, the tuned matching circuit is moved out of the network analyz...

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Abstract

The invention discloses a gallium solenoid micro-coil with a circular cross section based on bonding of a capillary tube and a double-faced adhesive tape and a preparation method of the micro-coil. The micro-coil comprises a three-layer structure which orderly comprises a capillary tube inner layer (10), a double-faced adhesive tape middle layer (20) and a double-faced adhesive tape outer layer (30) from inside to outside; a sample cavity (11) is formed in the capillary tube inner layer (10); a solenoid micro-coil cavity (21) is formed in the double-faced adhesive tape middle layer (20); a first bonding pad cavity (31) and a second bonding pad cavity (32) are formed in the double-faced adhesive tape outer layer (30). The gallium solenoid micro-coil is capable of effectively solving the problems of high process complexity, high fabrication cost and the like of the existing solenoid micro-coil without scarifying high magnetic field application and under the premise of accurately distinguishing a sample similar to the transverse relaxation time of PDMS (Plasma Desorption Mass Spectrometry), and can be widely applied to the field of nuclear magnetic resonance detection of micro-fluids.

Description

technical field [0001] The invention relates to a gallium solenoid micro-coil, in particular to a gallium solenoid micro-coil with a circular cross section bonded by a capillary and a double-sided adhesive and a manufacturing method thereof. Background technique [0002] Since Purcell et al. (Resonance Absorption by Nuclear Magnetic Moments in a Solid. Physical Review, 1946. 69(1-2): p. 37.) used the absorption method and Bloch et al. (The Nuclear Induction Experiment. Physical Review, 1946. 70( 7-8): p. 474.) Since the phenomenon of nuclear magnetic resonance (nuclear magnetic resonance, NMR) was independently discovered by the induction method, research on NMR technology has continued to emerge. NMR technology has two obvious characteristics: first, it has the advantage of non-destructive testing; second, it has the disadvantage of low detection sensitivity. In order to make up for the disadvantages, some scholars put their research direction into technologies such as sup...

Claims

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Application Information

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IPC IPC(8): G05B19/418
CPCY02P90/02
Inventor 张春伟周海刘必荣曾勇
Owner YANCHENG INST OF TECH