Impedance Analyzer for Real-Time Corrosion Quantification

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Solution Overview

Problem

Current technologies lack a real-time, non-destructive method for detecting and quantifying surface and bulk corrosion and erosion in metals and non-metallic materials, particularly in industrial settings like the gas and oil industry and civil infrastructure, where rapid detection is crucial for maintaining structural integrity and extending service life.

Innovation Solution

A system and method using an impedance analyzer to measure and characterize the electrical properties of materials and interfaces, allowing for real-time detection and quantification of corrosion and erosion by analyzing resistance, capacitance, and inductance, with non-destructive contact methods applicable in both laboratory and field settings.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional corrosion detection methods are used, then corrosion can be detected, but real-time detection and quantification capability is lacking

Engineering Contradiction:

Improvecorrosion detection precisionVSAvoiddetection time

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The patent replaces traditional mechanical or chemical corrosion detection methods with an electrical measurement system. By measuring electrical resistance changes in the metal substrate caused by corrosion products formation, the system achieves rapid, real-time detection without mechanical contact or chemical reagents, resolving the contradiction between detection precision and time consumption.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The corrosion detection system utilizes the corrosion process itself to generate the detection signal. As corrosion products form on the metal surface, they naturally alter the electrical resistance, which the system measures directly. This self-service approach eliminates the need for separate detection agents or complex measurement procedures, enabling real-time monitoring.

Inventive Principle:

Principle #25Self-service

2Reliability

If non-destructive testing methods are used, then material integrity is maintained, but detection speed and real-time capability are reduced

Engineering Contradiction:

Improvematerial integrityVSAvoiddetection speed

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The patent replaces slow, traditional non-destructive testing methods (such as ultrasonic or radiographic testing) with an electrical resistance measurement system. This substitution maintains material integrity while achieving rapid, real-time detection capabilities, as electrical measurements can be taken instantly without physical penetration or complex scanning procedures.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Difficulty of detecting and measuring

If electrical resistance measurement is used to detect corrosion, then detection capability is improved, but interface electrical property changes are not addressed

Engineering Contradiction:

Improvecorrosion detection capabilityVSAvoidinterface electrical properties information

Core Design Contradiction:

Difficulty of detecting and measuringVSLoss of information

Solution Approach 1:

The patent introduces electrical resistance measurement as an intermediary parameter that connects corrosion product formation to detectable signals. By measuring the electrical resistance changes at the metal-corrosion product interface, the system captures both the presence of corrosion and the electrical property changes at the interface, eliminating information loss about interface conditions.

Inventive Principle:

Principle #24Intermediary (Mediator)

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

Enables rapid, non-destructive detection and quantification of surface and bulk corrosion and erosion, improving the integrity of material interfaces and extending the service life of structures by identifying corrosion and erosion levels in real-time across various scales.

Implementation Method 1

measure and characterize the electrical properties of materials and interfaces, allowing for real-time detection and quantification of corrosion and erosion by analyzing resistance, capacitance, and inductance

Methodology Applied

Scientific EffectElectrical Resistance: Electrical Resistance

Data Source

PatentUS10690586B2Rapid detection and quantification of surface and bulk corrosion and erosion in metals and non-metallic materials with integrated monitoring system

Publication Date: 2020.06.23 UNIV HOUSTON SYST

AI summary

Systems and methods for real-time detecting and quantification of surface and bulk corrosion and erosion in materials involve measuring and characterizing the electrical resistances, capacitances, and/or inductances of the materials and their interfaces, preferably by using an impedance analyzer precision LCR meter. The materials may be metals, non-metals (such as plastics, polymers, cements, concrete, ceramics, rocks and soils) and composite materials with various types of material constituents (such as metals, plastics, polymers, and cements).