A resistance probe for material erosion monitoring

By designing electrodes with "Ω" or serpentine curve structures and insulating encapsulation, the problems of easy corrosion and poor versatility of resistance probes are solved, enabling more accurate material corrosion monitoring.

CN117607023BActive Publication Date: 2026-06-26STATE GRID FUJIAN ELECTRIC POWER CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
STATE GRID FUJIAN ELECTRIC POWER CO LTD
Filing Date
2023-10-19
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing resistance probes are easily corroded and damaged, have poor versatility, and cannot adapt to the composition, structure, and surface condition of different materials, resulting in distorted monitoring data.

Method used

Design a resistance probe that uses an "Ω"-shaped or serpentine curve structure for the corrosion electrode and reference electrode, with the same material and surface condition. It is encapsulated with insulating epoxy resin, and the outer shell is equipped with a magnet for easy installation. The surface of the corrosion electrode is coated with a paint to simulate the surface condition of real equipment.

Benefits of technology

The probe's corrosion resistance has been enhanced, improving the accuracy and versatility of monitoring. It can be adapted to corrosion monitoring of various materials and reduces the impact of localized corrosion on monitoring results.

✦ Generated by Eureka AI based on patent content.

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    Figure CN117607023B_ABST
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Abstract

The application relates to a resistance probe for material corrosion monitoring, which comprises a shell and a reference electrode and a corrosion electrode arranged in series on the shell, the reference electrode is sealed in the shell by being isolated from the outside through a packaging medium, and the corrosion electrode is exposed outside the shell; the corrosion electrode is a continuous non-overlapping coiled curve line structure in one working plane of the shell; the application increases the length of the corrosion electrode through the "Omega" type design, so that the cross-sectional area of the electrode can be increased under the condition that the resistance change is the same, the failure resistance of the electrode to the damage caused by local corrosion of the probe is enhanced, the cross-sectional area of the corrosion electrode is increased, the measuring element is not affected by the machining process during the preparation process, the material surface state of the measuring element is different from the surface state of the monitored equipment, and therefore the health state of the equipment can be more accurately reflected.
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