Conductive Coating Pattern for Erosion Detection
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Solution Overview
Problem
Existing methods for monitoring the degradation of protective coatings on industrial assets are costly, prone to subjective assessment, and limited to local detection, failing to prevent malfunctions between inspections and lacking precision in erosion monitoring over extended surfaces.
Innovation Solution
A system comprising a protective coating with integrated electrically conductive patterns that measure resistance changes to detect erosion, allowing for precise location and progression tracking of degradation, enabling proactive maintenance and repair planning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If dedicated sensors are placed on the protective coating to monitor degradation, then detection capability is improved, but device complexity and cost increase
Solution Approach 1:
The protective coating contains an integrated electrically conductive pattern that serves as its own sensing element. The coating structure itself (with conductive layers embedded within) performs the detection function, eliminating the need for separate dedicated sensors. When erosion occurs, the exposure of the conductive pattern directly changes the electrical properties, providing self-diagnostic capability.
Solution Approach 2:
The electrically conductive pattern serves multiple functions: it is part of the protective coating structure providing erosion resistance, and simultaneously acts as the sensing element for detecting coating degradation. This multi-functionality reduces overall system complexity by combining protection and detection in a single integrated structure.
2Measurement precision
If dedicated sensors are used to monitor coating degradation, then local detection is possible, but monitoring coverage over extended surfaces is limited
Solution Approach 1:
The electrically conductive pattern is divided into multiple discrete conductive elements or traces distributed across the coating surface. Each conductive element can be independently monitored, allowing the system to detect erosion at multiple locations simultaneously. This segmentation enables coverage of extended surfaces while maintaining precise local detection capability.
Solution Approach 2:
The monitoring capability transitions from point-based sensor locations to area-wide coverage by embedding conductive patterns across the entire coating surface. The electrical measurement dimension allows detection across two-dimensional extended surfaces, transforming the monitoring scope from localized to distributed coverage.
3Reliability
If regular inspections are conducted to monitor asset condition, then risk of malfunction is reduced, but productivity is lost due to downtime and subjective assessment limitations
Solution Approach 1:
The system provides continuous or periodic electrical resistance measurements of the conductive pattern, creating a feedback loop that monitors coating condition in real-time or near-real-time. This automated feedback eliminates the need for manual inspections, reduces downtime, and provides objective data for maintenance decision-making, thereby improving both reliability and productivity.
Solution Approach 2:
Manual inspection processes are replaced with automated electrical resistance measurements. The mechanical/physical inspection activity is substituted with an electrical measurement system that automatically detects coating degradation, eliminating subjective assessment and reducing the need for asset downtime during monitoring.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system provides cost-effective, precise detection and monitoring of protective coating degradation over extended surfaces, facilitating timely and targeted maintenance actions, reducing the risk of asset malfunctions and extending the lifespan of protective coatings.
Implementation Method 1
a first electrically conductive pattern arranged inside the protective coating between the lower coating potion and the first upper coating portion; wherein the system further comprises a resistance measurement device configured to electrically connect with the first electrically conductive pattern to measure the resistance across the first electrically conductive pattern
Data Source
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AI summary
The invention provides a system configured for detecting a degradation in a protective coating of the system and an associated method. The protective coating comprises - a lower coating portion arranged on a substrate to be coated; - a first upper coating portion arranged on the lower coating portion; - a first electrically conductive pattern arranged inside the protective coating between the lower coating potion and the first upper coating portion. The system further comprises a resistance measurement device configured to electrically connect with the electrically conductive pattern to measure the resistance across the pattern. A degradation of the first upper coating that exposes at least a portion of the pattern is detected in the form of a change in the resistance measured across the pattern.