Curved Flexible X-ray Detector for Pipe Weld Inspection
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Solution Overview
Problem
Current digital X-ray detectors for pipe inspection are slow, bulky, and often based on fragile glass substrates, limiting their ruggedness and flexibility, making them unsuitable for efficient and portable use in field applications.
Innovation Solution
A portable digital X-ray detector with a curved, flexible substrate that allows for intimate contact with pipes, enabling efficient digital imaging and accommodating complex pipe geometries, featuring a tiered or layered connection of scan modules and pixels with pitches of 100µm, 125µm, or 150µm for improved resolution and workflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a flat, rigid glass substrate is used for the X-ray detector, then manufacturing precision and structural stability are improved, but adaptability to curved pipe surfaces and portability deteriorate
Solution Approach 1:
The patent applies curvature by forming the detector panel into an arc shape that matches the curvature of the pipe being inspected. This allows the detector to conform to the cylindrical surface of pipes, enabling close coupling and improved image quality without requiring flat substrates, thereby resolving the contradiction between manufacturing precision and adaptability to curved surfaces
Solution Approach 2:
The patent uses a thin-film flexible substrate instead of rigid glass, allowing the detector panel to be bent into various curvatures. This flexible substrate maintains sufficient structural integrity while enabling adaptation to different pipe diameters and curvatures, thus improving versatility without sacrificing manufacturing precision
2Reliability
If a thick protective package is used to protect the glass substrate, then ruggedness is improved, but detector weight and thickness increase
Solution Approach 1:
The patent replaces fragile glass with a flexible thin-film substrate that is inherently more resistant to breakage during handling and transport. This eliminates the need for thick protective packaging, thereby maintaining ruggedness while significantly reducing detector weight and thickness
Solution Approach 2:
The patent employs composite material structures that combine multiple layers with different properties to achieve both protection and flexibility. The multi-layer construction provides mechanical strength and impact resistance without requiring excessive thickness, thus improving ruggedness while controlling weight
3Adaptability or versatility
If film-based inspection methods are used, then adaptability to pipe surfaces is improved, but inspection speed and digital workflow capability deteriorate
Solution Approach 1:
The patent replaces the mechanical film development process with electronic digital detection and processing. The flexible detector panel captures X-ray images digitally, which can then be immediately processed, stored, and analyzed using computer-based systems, eliminating the time-consuming film development workflow while maintaining adaptability to curved surfaces
Solution Approach 2:
The patent transitions from analog film to digital detection by changing the fundamental parameter of image capture methodology. This enables real-time or near-real-time image acquisition and processing, dramatically improving inspection speed while the flexible substrate maintains the ability to conform to pipe geometries
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 flexible substrate reduces the detector's weight and thickness, enhances ruggedness, and allows for faster image acquisition and more efficient inspection of pipes and welds, improving workflow and reducing the need for protective materials, while enabling remote review and archival of digital images.
Implementation Method 1
a detector panel configured to generate signals in response to incident X-rays
Data Source
Figure 1
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AI summary
Aspects of the present disclosure relate to the fabrication and use of a curved X-ray detector panel (64), suitable for use in imaging pipes (18) or other curved objects to which the curved detector may be fitted. In certain embodiments, the curved detector panel is fabricated using a thin, flexible substrate that is unbreakable or resistant to breaking.