X-ray Strand Measurement Noise Reduction via Reference Curves
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Solution Overview
Problem
Current X-ray measuring methods for strands, such as pipes, face challenges in accurately detecting defects, especially in regions with low absorption, where noise interference complicates the identification of material thickenings and weakenings, and fail to precisely localize defects within the material layers.
Innovation Solution
An X-ray measuring method and device that continuously collect and compare transmission curves, using a reference curve averaged from multiple measurements to reduce noise and accurately detect defects, with adjustable X-ray source and detector configurations for improved resolution and localization, including multiple measuring axes and adaptive adjustments for temperature and wear considerations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If transmission curves are measured continuously for defect detection, then measurement speed and productivity are improved, but noise interference increases making defect identification difficult
Solution Approach 1:
The system performs preliminary measurements to create a reference transmission curve before actual defect detection begins. This reference curve captures the noise characteristics and baseline transmission properties, allowing subsequent continuous measurements to be compared against it and filtered for noise, thus maintaining high measurement speed while improving defect detection accuracy.
Solution Approach 2:
The system uses feedback by continuously comparing current transmission curves against the stored reference transmission curve. Deviations from the reference that exceed noise thresholds are identified as defects, while variations within noise levels are filtered out. This feedback mechanism enables rapid continuous measurement while maintaining high precision in defect identification.
2Measurement precision
If multiple measurements are averaged to reduce noise, then measurement precision is improved, but measurement time increases reducing productivity
Solution Approach 1:
Multiple measurements are performed in advance to generate the reference transmission curve through averaging, which reduces noise and establishes the baseline. This preliminary averaging action separates the noise reduction process from the actual continuous defect detection, allowing rapid real-time measurements to be made without repeatedly performing time-consuming averaging operations.
3Measurement precision
If the X-ray source and detector are adjusted for better resolution, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The system implements dynamic adjustment capabilities where the X-ray source and detector can be repositioned along the measuring axis to optimize focus and resolution for different measurement conditions. This dynamic adjustability allows the system to maintain high measurement precision while using relatively simple linear adjustment mechanisms rather than complex multi-axis positioning systems.
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 secure and immediate detection of defects, including those in the middle regions and inner layers, with enhanced accuracy and precision, allowing for real-time adjustments in production parameters and extended detector lifetime by accounting for specific noise and temperature influences.
Implementation Method 1
emitting X-rays from the X-ray source through the measuring space and the strand in a measuring plane along a measuring axis and detecting the X-rays passing through the strand by the X-ray detector
Data Source
AI summary
The present disclosure relates to an X-ray measuring method and an X-ray measuring device for measuring a strand.