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A kind of corrosion monitoring sensor and its preparation method

A corrosion monitoring and sensor technology, applied in weather resistance/light resistance/corrosion resistance, instruments, measuring devices, etc., can solve problems such as complex erection, corrosion of components, and large differences between the actual environment and the simulated environment

Active Publication Date: 2021-08-31
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this traditional three-electrode system, the three electrodes are independent of each other, the erection is complicated, the actual environment and the simulated environment are quite different, and the real corrosion situation of the components cannot be given.

Method used

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  • A kind of corrosion monitoring sensor and its preparation method
  • A kind of corrosion monitoring sensor and its preparation method
  • A kind of corrosion monitoring sensor and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067]The corrosion monitoring sensor of the present invention comprises an insulating substrate 2, a current electrode 4, a voltage electrode 5, a shielding electrode one 6, a shielding electrode two 7, a shielding electrode three 8, and a metal connecting piece 9 to be measured;

[0068] The insulating substrate 2 is a polyimide film with a thickness of 0.01mm, and the shape is a rectangle of 30mm×50mm, and a through hole 3 of Φ12mm is opened in the center of the insulating substrate 2;

[0069] The voltage electrode 5 is made of copper;

[0070] The current electrode 4 is made of copper, the outer diameter of the arc is Φ14mm, the inner diameter of the arc is Φ12mm, and the width of the gap 11 is 1.5mm;

[0071] The material of the tested metal connecting piece 9 is copper, and the shape is a rectangle of 5mm×10mm;

[0072] The current electrode 4 , voltage electrode 5 , shielding electrode 1 6 , shielding electrode 2 7 , and shielding electrode 3 8 are located on the fron...

Embodiment 2

[0075] The corrosion monitoring sensor of the present invention comprises an insulating substrate 2, a current electrode 4, a voltage electrode 5, a shielding electrode one 6, a shielding electrode two 7, a shielding electrode three 8, and a metal connecting piece 9 to be measured;

[0076] The insulating substrate 2 is a polyimide film with a thickness of 0.5mm, and the shape is a rectangle of 30mm×50mm, and a through hole 3 of Φ3mm is opened in the center of the insulating substrate 2;

[0077] The voltage electrode 5 is made of copper;

[0078] The material of the current electrode 4 is copper, the outer diameter of the arc is Φ6mm, the inner diameter of the arc is Φ4mm, and the width of the gap 11 is 1.5mm;

[0079] The material of the tested metal connecting piece 9 is copper, and the shape is a rectangle of 5mm×10mm;

[0080] The current electrode 4 , voltage electrode 5 , shielding electrode 1 6 , shielding electrode 2 7 , and shielding electrode 3 8 are located on the...

Embodiment 3

[0083] The corrosion monitoring sensor of the present invention comprises an insulating substrate 2, a current electrode 4, a voltage electrode 5, a shielding electrode one 6, a shielding electrode two 7, a shielding electrode three 8, and a metal connecting piece 9 to be measured;

[0084] The insulating substrate 2 is a polyimide film with a thickness of 0.1mm, and the shape is a rectangle of 30mm×50mm, and a through hole 3 of Φ8mm is opened in the center of the insulating substrate 2;

[0085] The voltage electrode 5 is made of gold;

[0086] The material of the current electrode 4 is gold, the outer diameter of the arc is Φ10.5mm, the inner diameter of the arc is Φ8.5mm, and the width of the gap 11 is 1.5mm;

[0087] The material of the tested metal connecting piece 9 is gold, and the shape is a rectangle of 5mm×10mm;

[0088] The current electrode 4 , voltage electrode 5 , shielding electrode 1 6 , shielding electrode 2 7 , and shielding electrode 3 8 are located on the ...

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Abstract

The application provides a corrosion monitoring sensor, including an insulating substrate, a current electrode, a voltage electrode, a shielding electrode 1, a shielding electrode 2, a shielding electrode 3, a metal connection piece to be tested, and an electrode lead wire; the application also provides a The preparation method of the above-mentioned corrosion monitoring sensor; the distance between the current electrode, the voltage electrode and the measured object is the thickness of the insulating substrate, the consistency is good and the ohmic drop is reduced; the through hole is circular, and the current electrode is arc-shaped, The uniformity of the corrosion current can be guaranteed; at the same time, the distance between the current electrode and the metal to be tested can be changed according to the test environment, and the sensitivity of the sensor can be improved by reducing the inner diameter of the current electrode; the sensor is made of flexible materials and can be directly Loaded on the metal component to be tested for monitoring, it is suitable for corrosion monitoring of various parts of metal components of various shapes; and can be used for online corrosion monitoring of metal parts in atmospheric environment, soil environment, marine environment, etc.

Description

technical field [0001] The invention relates to the technical field of corrosion monitoring, in particular to a corrosion monitoring sensor and a preparation method thereof. Background technique [0002] The problem of metal corrosion pervades all fields of the national economy. According to statistics, the amount of metal scrapped due to corrosion in the world is equivalent to 1 / 4 to 1 / 3 of the annual output of metals. The annual loss caused by corrosion in China accounts for about 3.34% of GDP. Metal corrosion has caused great losses to human society. [0003] Metal corrosion refers to the deterioration and destruction caused by chemical, electrochemical and physical interactions between metals and their surrounding media. Corrosion evaluation methods include: appearance method, weight volume method, spectrum image method and electrochemical method. These conventional corrosion evaluation methods all indirectly evaluate the corrosion of components by evaluating samples o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N17/02
CPCG01N17/02
Inventor 闫风洁李辛庚姜波苏建军蔺振华樊志彬王晓明郭凯张振岳李文静王蝶吴亚平米春旭宗立君赵洺哲朱耿增
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
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