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Graphene-based cavitation online monitoring device

A monitoring device and graphene technology, applied in the direction of material resistance, etc., can solve the problems of low sensitivity of traditional monitoring technology and the inability to realize real-time monitoring, and achieve the effect of real-time monitoring and high sensitivity of high cavitation

Inactive Publication Date: 2021-03-16
西安柯莱特信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional cavitation monitoring technology cannot realize real-time monitoring of cavitation, and the sensitivity of traditional monitoring technology is not high

Method used

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  • Graphene-based cavitation online monitoring device
  • Graphene-based cavitation online monitoring device

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The invention provides a graphene-based cavitation on-line monitoring device, such as figure 1 As shown, it includes an adhesion layer 1 , an insulating layer 2 , a graphene layer 3 , a source 4 , a drain 5 , an electronegative material part 6 , and an electropositive material part 7 . An insulating layer 2 is placed on the adhesive layer 1 . The graphene layer 3 is placed on the insulating layer 2 . The number of layers of graphene in the graphene layer 3 is greater than 1 layer and less than 10 layers, so as to ensure the sensitivity of the conductive properties of the graphene layer 3 to its grid voltage, that is, the conductive properties of the graphene layer 3 are relatively sensitive to the electronegative material. Sensitivity to charge changes within section 6. The source electrode 4 and the drain electrode 5 are placed at both ends of the graphene layer 3 to measure the conductivity of the graphene layer 3 . The materials of the source electrode 4 and the d...

Embodiment 2

[0023] On the basis of Example 1, such as figure 2 As shown, holes 8 are provided in the insulating layer 2 at the interface between the insulating layer 2 and the graphene layer 3 . Electronegative material particles are placed on the upper side of the holes 8 . In this way, when the Venturi tube vibrates and the electropositive material part 7 compresses the electronegative material particles, the graphene layer 3 bends into the hole 8, thereby causing the graphene layer 3 to deform, thereby changing the graphene layer more. 3 conductive properties, so as to achieve higher sensitivity cavitation on-line monitoring.

[0024] Furthermore, the size of the pores 8 is larger than the size of the particles of the electronegative material. In this way, when the electronegative material particles press the graphene layer 3 downward, the electronegative material particles can move downward more, thereby changing the morphology of the graphene layer 3 more; The downward movement o...

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Abstract

The invention provides a graphene-based cavitation online monitoring device, which comprises an adhesion layer, an insulating layer, a graphene layer, a source electrode, a drain electrode, an electronegative material part and an electropositive material part, wherein the insulating layer is arranged on the adhesion layer, the graphene layer is arranged on the insulating layer, the source electrode and the drain electrode are arranged at two ends of the graphene layer, the electronegative material part is fixed on the graphene layer, the electronegative material part is not in contact with thesource electrode or the drain electrode, the electropositive material part is arranged on the electronegative material part, the edges of the electropositive material part and the electronegative material part are bonded, and the electronegative material part comprises electronegative material particles. According to the graphene-based cavitation online monitoring device, cavitation real-time monitoring with higher sensitivity can be realized.

Description

technical field [0001] The invention relates to the field of cavitation on-line monitoring, in particular to a graphene-based cavitation on-line monitoring device. Background technique [0002] Bubbles form, expand and collapse rapidly in a fluid when the pressure within the fluid changes suddenly, a phenomenon known as cavitation. Cavitation causes erosion of materials, shortens the life of equipment, and creates hazards such as vibration and noise. Monitoring cavitation is very important to the proper operation of equipment. Traditional monitoring techniques include high-speed camera method, coating corrosion method, noise measurement method, etc. Traditional cavitation monitoring technology cannot realize real-time monitoring of cavitation, and the sensitivity of traditional monitoring technology is not high. Contents of the invention [0003] In order to solve the above problems, the present invention provides a graphene-based cavitation online monitoring device, in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/04
CPCG01N27/04
Inventor 不公告发明人
Owner 西安柯莱特信息科技有限公司