Modular Magnetic Pipe Sensor Layout for Corrosion Coverage
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Solution Overview
Problem
Existing technologies struggle to effectively monitor and predict localized corrosion in subsea pipelines, which corrodes faster and has uneven growth characteristics, making it difficult to predict and manage pipeline integrity.
Innovation Solution
A magnetic pipe sensor apparatus comprising sensor units with inner and outer shells and a magnetic sensor array, arranged contiguously around the pipe to detect corrosion, using a magnetic field detection method, and connected to a cloud-based data processing system for analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If eddy current sensors are used for corrosion detection, then the ability to detect corrosion is improved, but the device complexity increases due to staggered layers of two-dimensional sub-arrays and dielectric layers
Solution Approach 1:
The magnetic sensor array is divided into multiple sensor units, each with its own inner shell, outer shell, and magnetic sensor array. These sensor units are arranged contiguously around the pipe to provide complete coverage while maintaining manageable individual unit complexity.
Solution Approach 2:
The sensor units are arranged in a spatial configuration that surrounds the pipe, transitioning from a two-dimensional array to a three-dimensional circumferential arrangement. This eliminates blind zones and provides comprehensive corrosion detection coverage.
2Measurement precision
If sensor units are arranged contiguously around the pipe to eliminate blind zones, then the measurement precision is improved, but the device complexity increases due to multiple sensor units with curved shells
Solution Approach 1:
The complete sensor system is segmented into multiple identical sensor units that can be manufactured and deployed as standardized modules. Each unit contains an inner shell, outer shell, and magnetic sensor array, allowing for systematic arrangement around the pipe.
Solution Approach 2:
Each sensor unit is designed as a universal module capable of being positioned at any location around the pipe. The standardized design with curved shells allows any sensor unit to perform the same function regardless of its position in the circumferential arrangement.
3Measurement precision
If the inner shell and outer shell are made from non-magnetic materials like aluminum or carbon fiber, then the magnetic field detection accuracy is improved, but the manufacturing precision requirements increase to ensure proper material selection and assembly
Solution Approach 1:
Different materials are selected for different components based on their specific requirements. The inner shell and outer shell use non-magnetic materials (aluminum, carbon fiber, industrial grade plastic) to preserve magnetic field integrity, while the magnetic sensor array uses specialized magnetic materials for detection. This localized material optimization balances detection accuracy with manufacturing feasibility.
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 apparatus provides continuous monitoring and prediction of corrosion, extending the pipeline's useful life by enabling timely maintenance decisions and reducing replacement costs.
Implementation Method 1
The magnetic sensor arrays include a plurality of printed circuit board strips which are arranged in parallel
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
An apparatus including one or more sensor units. Each of the sensor units includes an inner shell, an outer shell, and a magnetic sensor array. The magnetic sensor array is disposed between the inner shell and the outer shell. The inner shell, the outer shell, and the magnetic sensor array have curved shapes that complements an outer surface of a pipe. The magnetic sensor array may comprise a plurality of printed circuit board strips. Each of the plurality of printed circuit board strips comprise a plurality of magnetic sensors distributed along each of the plurality of the printed circuit board strips.