Ultrasonic Analysis With Dynamic Focal Depth Variation
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Solution Overview
Problem
Conventional nondestructive testing (NDT) techniques using ultrasonic analysis face challenges in detecting subtle defects in materials, particularly in composite materials, due to difficulties in setting up and performing the tests, and limited sensitivity in characterizing subtle properties.
Innovation Solution
A method and system that utilize temporally ordered ultrasonic signals with variable imaging parameters, such as focal depth, which vary over time according to specific functions, combined with discrete Fourier transforms and anomaly criteria, to enhance detection sensitivity and characterize properties of subjects like composite materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional ultrasonic NDT techniques are used, then the setup and operation are simple, but the detection sensitivity for subtle defects is insufficient
Solution Approach 1:
The patent implements dynamic focusing by continuously varying the focal depth of ultrasonic beams over time during the inspection process. This dynamic adjustment of imaging parameters allows the system to maintain high detection sensitivity across different depths while using a single transducer, resolving the contradiction between detection sensitivity and system complexity
Solution Approach 2:
The system changes the focal depth parameter dynamically during ultrasonic beam transmission. By varying this imaging parameter over time according to a predetermined function, the system enhances detection sensitivity for subtle defects at different depths without requiring multiple transducers or complex mechanical setups
2Measurement precision
If conventional ultrasonic imaging is used, then the setup is straightforward, but the ability to characterize subtle properties is limited
Solution Approach 1:
The system employs periodic variation of the focal depth parameter following a predetermined function. This periodic action enables the system to characterize subtle material properties by analyzing the temporal patterns of reflected signals, improving measurement precision while maintaining straightforward operation through automated parameter control
Solution Approach 2:
The system uses the received reflected signals to determine material properties through analysis of the temporal variations caused by dynamic focusing. This feedback mechanism allows accurate characterization of subtle properties such as material homogeneity and defect characteristics without increasing operational 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
This approach allows for improved detection of subtle defects and properties in materials, facilitating easier implementation in production settings and providing enhanced sensitivity beyond conventional NDT methods.
Implementation Method 1
produce signals for causing a set of outgoing ultrasonic signals to be transmitted to the subject... receive signals representing a time dependent representation of the subject generated from a set of received ultrasonic signals scattered by the subject
Data Source
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AI summary
A method of facilitating ultrasonic analysis of a subject is provided. The method involves producing signals for causing a set of outgoing ultrasonic signals to be transmitted to the subject, wherein the set of outgoing ultrasonic signals is defined at least in part by a variable imaging parameter that varies over time in accordance with a variable imaging parameter function, the variable imaging parameter function represented or representable at least in part by a function characteristic, receiving signals representing a time dependent representation of the subject generated from a set of received ultrasonic signals scattered by the subject, determining at least one property representation of the subject based on the function characteristic and the time dependent representation of the subject, and producing signals representing the at least one property representation of the subject to facilitate analysis of the subject. Systems, non-transitory computer readable media, and other methods are also provided.