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A Multilayer Graphene Stain Detection System

A detection system, a technology for olefin stains, applied in the direction of optical testing flaws/defects, etc.

Inactive Publication Date: 2018-09-25
夏烬楚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Due to the excellent performance of graphene, graphene has become a key point to break through the bottleneck of today's scientific and technological development. Although my country ranks among the top in the world in the research of graphene papers, there are still many deficiencies in the application and detection of graphene. In the application of graphene, whether multi-layer graphene meets the requirements of use during the overlapping process requires good detection methods and detection equipment

Method used

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  • A Multilayer Graphene Stain Detection System

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Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0086] Such as figure 1 As shown,

[0087] The control system of the multilayer graphene stain detection system of the present invention includes:

[0088] Control unit, including controller;

[0089] The scanning unit includes a scanning mechanism 5, which includes a laser and a lifter. The laser includes a flat laser generator, a round-head laser generator, a concave laser receiving slot, and a number of laser sensors arranged inside the laser receiving slot ; After the laser is lifted to the designated position, the flat laser produces a ribbon laser with a width of 1mm and a thickness of 10μm. The laser is reflected by the graphene and received by the laser sensor in the designated area in the laser receiving groove; the laser sensor in the non-designated area is received When the laser or the laser sensor in the designated area receives a laser intensity change exceeding the set value, the round-head laser generator is turned on to generate a cylindrical laser with a radius of...

specific Embodiment 2

[0096] The vacuum method of the control system according to specific embodiment 1:

[0097] (1) Close the sealing cover 7 and check the sealing condition at the gap of the sealing cover 7;

[0098] (2) The control unit gives the vacuum motor a current of 95-5.5A to operate at a speed of 180-200r / min and extracts the air in the sealing cover 7 so that the absolute air pressure in the sealing cover 7 is 80-88kpa;

[0099] (3) The control unit controls the blower to open, and controls the blower head 4 to inject nitrogen flow into the sealing cover 7 to blow up the dust in the sealed cavity;

[0100] (4) The control unit increases the current supplied to the vacuum motor 9 to increase its speed to 230-240r / min; at the same time, the absolute air pressure in the sealing cover 7 is not higher than 80kpa;

[0101] (5) After 5-8 minutes, close the blower and further reduce the pressure in the sealing cover 7 to an absolute pressure of 30-35kpa.

[0102] Due to the above method, the sealed envir...

specific Embodiment 3

[0103] The laser scanning method of the control system according to specific embodiment 1:

[0104] (1) Turn on the scanning unit, control the laser to rise and fall to a height of 220cm-22cm from the mobile platform, and control the flat laser generator to generate a ribbon laser with a width of 1mm and a thickness of 10μm;

[0105] (2) The control unit controls the moving platform 2 to move horizontally and horizontally at a speed of 60cm / min, so that the mirror moves to the band laser, and the mirror reflects the band laser to the laser sensor;

[0106] (3) Adjust the position of the mobile station 2, the belt-shaped laser scans the mirror at a speed of 2.5cm / min, scans the mirror, and the laser sensor receives the belt-shaped laser; the control unit records the position of the mobile station 2 and simultaneously Record the position and laser intensity of the laser sensor receiving the band laser;

[0107] (4) Place the graphene horizontally on the holder above the reflector, adjus...

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Abstract

The invention relates to a multilayer graphene stain detection system. The multilayer graphene stain detection system comprises a control unit, and a scanning unit, an operation unit, a photographing unit, a vacuum unit and an image processing unit, which are respectively connected with the control unit. A principle that the laser is refracted is used for detecting a stain on graphene, the accuracy is relatively high, the laser with better aggregation property is used for scanning one by one, the precision and error prevention performance are higher, a laser sensor is used for acquiring a laser signal which is analyzed by the control unit, the non-transparency characteristic is convenient for the test, and an effect for preventing other light from interfering a test result can be realized; an air blower can be used for scanning a closed space, and dust in the air can be prevented from dropping on the graphene to be detected not to affect the detection accuracy.

Description

Technical field [0001] The invention relates to a multi-layer graphene stain detection system. Background technique [0002] Graphene is a two-dimensional crystal with a thickness of only one layer of carbon atoms exfoliated from graphite materials. Graphene is not only the thinnest material, but also the strongest material, and its fracture strength is 200 times higher than the best steel. At the same time, it has good elasticity, and the stretching range can reach 20% of its own size. If a piece of graphene with an area of ​​1 square meter is used to make a hammock, it weighs less than 1 milligram and can bear a one kilogram of cat. Graphene is almost completely transparent, absorbing only 2.3% of light. On the other hand, it is so dense that even the smallest gas atoms cannot penetrate. These characteristics make it very suitable as a raw material for transparent electronic products, such as transparent touch screens, light-emitting panels and solar panels. [0003] Due to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/94
Inventor 夏烬楚
Owner 夏烬楚