Curved Transducer Array for Complex Geometry Inspection
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Solution Overview
Problem
Conventional phased array systems with flat transducer arrays are inadequate for inspecting components with complex geometries, as they struggle to generate appropriate sound beams for curved surfaces.
Innovation Solution
A phased array inspection system utilizing a curved transducer array and focal law calculator software to determine the phasing of elements, enabling the formation of focused, stretched, or steered sound waves for effective component inspection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a flat transducer array is used, then the device complexity is reduced and ease of manufacture is improved, but the ability to inspect components with complex geometries deteriorates
Solution Approach 1:
The patent applies curvature to the transducer array surface, transforming it from a flat plane to a curved surface that can conform to complex component geometries. This curved array configuration enables the sound beam to better match the curvature of inspected components, thereby improving inspection capability for complex geometries while maintaining manufacturing feasibility through standardized curved array designs.
2Adaptability or versatility
If a curved transducer array is used, then the ability to inspect components with complex geometries is improved, but the device complexity increases
Solution Approach 1:
The patent employs parameter changes in the phasing and timing of individual transducer elements to achieve beam steering and focusing without physically moving or reconfiguring the array structure. By dynamically adjusting the excitation parameters of each element, the system achieves adaptability for complex geometries while avoiding the mechanical complexity that would result from physical reconfiguration mechanisms.
3Device complexity
If conventional flat phased array systems are used, then the device complexity is kept simple, but the measurement precision for detecting defects in curved components deteriorates
Solution Approach 1:
The curved transducer array configuration enables the sound beam to follow the curvature of inspected components, maintaining consistent beam-to-surface geometry and improving defect detection precision. The curved geometry allows for better acoustic coupling and more uniform beam distribution across curved surfaces, thereby enhancing measurement precision without requiring overly complex system architectures.
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 effectively inspects components with complex geometries by generating appropriate sound beams, revealing defects within curved components that flat arrays cannot detect, through dynamic depth focusing and controlled beam formation.
Implementation Method 1
Each of the individual transducer elements can be pulsed (excited) separately. The pulses cause transducer elements to generate sound waves that combine to form a sound beam that propagates through a component.
Implementation Method 2
Potential defects in the component reveal themselves by reflecting the sound beam back to the transducer.
Data Source
AI summary
An example component inspection method includes directing a wave from a curved array of transducer elements toward a component. The method forms the wave using focal law calculator software.