Dynamic Pulsed Eddy Current Probe for Pipeline Inspection
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Solution Overview
Problem
Existing pulsed eddy current probes are limited in their ability to simultaneously scan and acquire data on specimens, requiring cessation of movement for data acquisition, which hampers efficient in-line inspection of pipelines for flaws like cracks and corrosion.
Innovation Solution
A dynamic pulsed eddy current inspection system comprising a remote computer, data acquisition system, and delivery apparatus, utilizing a dynamic pulsed eddy current probe with u-shaped magnetizing yokes and a sensor array, allowing for real-time data acquisition, transmission, and processing while scanning circumferentially and incrementally along pipelines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If prior art pulsed eddy current probes are used, then data acquisition can be performed on the specimen, but the probe must cease movement to acquire data, reducing inspection efficiency
Solution Approach 1:
The probe design transitions from static to dynamic operation, allowing the probe to move continuously while acquiring data. The sensor array and data acquisition system are synchronized with the probe's motion, enabling real-time data collection during scanning without requiring the probe to stop at any point.
Solution Approach 2:
The probe incorporates multiple sensors arranged in an array that are pre-positioned to cover the inspection area. The data acquisition system is pre-synchronized with the probe's motion parameters, allowing immediate data collection as the probe moves through the inspection zone without requiring pause or recalibration.
2Measurement precision
If the probe ceases movement for data acquisition, then accurate data can be collected, but the inspection process becomes slower and less efficient
Solution Approach 1:
The system incorporates feedback mechanisms where the probe's position and motion parameters are continuously monitored and fed back to the data acquisition system. This allows the system to adjust data sampling rates and processing in real-time based on the probe's actual motion, maintaining measurement accuracy while enabling continuous movement.
Solution Approach 2:
The data acquisition parameters (such as sampling rate, integration time, and trigger conditions) are dynamically adjusted based on the probe's motion state. This allows the system to maintain optimal measurement precision across varying inspection speeds, enabling both high-speed scanning and accurate data collection.
3Loss of information
If real-time data processing is implemented, then inspection results are available immediately, but system complexity increases
Solution Approach 1:
The data processing system is divided into modular functional blocks (signal conditioning, noise filtering, feature extraction, and result generation) that can be independently optimized and processed in parallel. This segmentation allows real-time processing of large data streams from the sensor array without requiring a monolithic complex system.
Solution Approach 2:
The system replaces complex mechanical data handling (physical data storage and manual analysis) with electronic and computational processing. Digital signal processing algorithms and embedded computing replace traditional mechanical or manual data analysis methods, enabling real-time results with reduced physical complexity.
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 simultaneous scanning and data acquisition during pipeline inspection, enhancing the efficiency and effectiveness of detecting flaws without disrupting the inspection process, thereby improving the detection of cracks and corrosion within pipelines.
Implementation Method 1
The coil is energized via a current to create a magnetic field. The magnetic field induces eddy currents in the conductive materials of the test specimen
Implementation Method 2
The magnetic field induces eddy currents in the conductive materials of the test specimen, which generate a secondary magnetic field
Data Source
AI summary
The present invention provides methods and systems for in-line inspection of a pipe using a dynamic pulsed eddy current probe system that includes of a remote computer, a dynamic pulsed eddy current probe, a data acquisition system, and a delivery apparatus used for nondestructive examination of pipelines.