3D Ultrasonic Visualization for Composite Defect Detection
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Solution Overview
Problem
Current ultrasonic testing systems face challenges in accurately detecting small foreign objects and characterizing defects in composite materials, such as foreign objects, bond line thickness, and porosity, due to limitations in resolution and the need for calibration blocks, which can be costly and time-consuming.
Innovation Solution
A system using a transducer housing assembly with a sealed fluid chamber and a processor to generate three-dimensional graphical representations of test objects, allowing for the detection of foreign objects smaller than 6 mm with an error of less than 0.5 mm, and determining bond line thickness and porosity without calibration blocks, utilizing advanced signal processing and artificial intelligence for precise defect identification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional ultrasonic testing methods are used to detect small foreign objects, then the testing can be performed with conventional equipment, but the resolution and detection accuracy for objects smaller than 6 mm is insufficient
Solution Approach 1:
The patent transforms one-dimensional A-scan ultrasonic data into three-dimensional visual representations, enabling operators to view defects from multiple angles and depths. This dimensional transformation improves detection accuracy of small foreign objects by providing spatial context that conventional 2D displays cannot provide, while the automated processing algorithms manage the complexity of 3D data generation.
Solution Approach 2:
The patent introduces calibration-free reference standards and automated signal processing algorithms as intermediaries between the ultrasonic transducer and the final defect characterization. These intermediaries enhance measurement precision by automatically compensating for system variations and providing quantitative defect sizing without requiring manual calibration blocks, thereby improving detection accuracy while managing system complexity through software-based solutions.
2Measurement precision
If calibration blocks are used to characterize defects, then measurement accuracy can be improved, but the testing process becomes time-consuming and costly
Solution Approach 1:
The patent extracts and removes the calibration block requirement from the testing process by implementing automated reference standards embedded within the test material itself. This extraction eliminates the time-consuming step of using separate calibration blocks while maintaining measurement precision through integrated reference features that are processed automatically by the ultrasonic imaging system.
Solution Approach 2:
The patent enables the testing system to self-calibrate and self-characterize defects by using automated algorithms that process ultrasonic data without requiring external calibration standards. The system performs self-adjustment through software-based compensation techniques, eliminating the need for manual calibration procedures and reducing testing time while maintaining accurate defect characterization.
3Loss of information
If conventional ultrasonic testing is used, then the equipment is simpler and cheaper, but the ability to provide real-time three-dimensional visualization of defects is limited
Solution Approach 1:
The patent implements automated transformation of one-dimensional A-scan data into three-dimensional visual representations, providing complete spatial information about defects including depth, size, and shape. This 3D visualization approach recovers lost information by presenting defect data in multiple dimensions, while the automated processing algorithms manage the computational complexity of generating and displaying 3D models in real-time.
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 system achieves high precision in detecting small foreign objects and characterizing defects, providing accurate measurements of bond line thickness and porosity, enhancing the evaluation of composite materials' integrity and mechanical properties without the need for calibration blocks, thus improving the reliability and efficiency of ultrasonic testing.
Implementation Method 1
an ultrasonic transducer disposed within a sealed fluid chamber... operable to emit ultrasonic waves into and receive ultrasonic waves from a test object
Implementation Method 2
an ultrasonic transducer disposed within a sealed fluid chamber within the transducer housing assembly
Data Source
AI summary
The present disclosure provides a system and method for real-time visualization of a material during ultrasonic non-destructive testing. The system includes a graphical user interface (GUI) capable of showing a three-dimensional (3-D) image of a composite laminate constructed of a series of two-dimensional (2-D) cross sections. The GUI is capable of displaying the 3-D image as each additional 2-D cross section is scanned by an ultrasonic testing apparatus in real time or near real time, including probable defect regions that contain a flaw such as an air pocket, delamination, or foreign object within the composite. Furthermore, in one embodiment, the system includes an artificial intelligence capable of highlighting foreign objects within the 3-D image in real time or near real time and providing data regarding each object area, such as the depth, size, and/or type of each defect.