Ultrasonic Inspection Device Aligning 3D Data Without Position Sensors
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current ultrasonic inspection methods face challenges in accurately identifying defect echoes and shape echoes in complex objects, particularly when inspecting internal structures like welded parts within pressure containers, due to the difficulty in aligning three-dimensional inspection data and shape data without precise relative position information between the probe and the object.
Innovation Solution
An ultrasonic inspection method and device that generate and compare three-dimensional ultrasonic inspection data with calculated ultrasonic propagation data, allowing for automatic position adjustment on a display screen to overlay and align inspection data with shape data, even without initial relative position information, using techniques such as ray tracing and correlation functions to identify echoes accurately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If three-dimensional inspection data and shape data are displayed without automatic position adjustment, then the display process is simple, but the identification of defect echoes and shape echoes becomes time-consuming and inaccurate
Solution Approach 1:
The inspection device automatically adjusts the position of three-dimensional inspection data relative to shape data by calculating ultrasonic propagation data and comparing it with received waveforms, enabling self-alignment without manual intervention. This allows rapid identification of defect echoes and shape echoes while maintaining high accuracy.
Solution Approach 2:
The patent replaces manual mechanical position adjustment with automated computational methods. By using ray tracing calculations and correlation functions to automatically align inspection data with shape data, the system eliminates time-consuming manual operations while preserving identification accuracy.
2Measurement precision
If manual position adjustment is performed to align inspection data with shape data, then positioning accuracy can be improved, but the inspection process becomes more complex and time-consuming
Solution Approach 1:
The system performs self-alignment by automatically calculating ultrasonic propagation data based on shape data and comparing it with received inspection data. The device determines the optimal position through correlation analysis without requiring complex manual adjustment procedures or specialized operator skills.
Solution Approach 2:
The patent calculates ultrasonic propagation data in advance based on the three-dimensional shape data before performing the actual comparison and alignment. This preliminary calculation of expected waveforms enables automatic position determination without requiring complex real-time adjustments during inspection.
3Measurement precision
If relative position information between probe and object is obtained beforehand, then alignment accuracy is improved, but the inspection process requires additional measurement steps
Solution Approach 1:
The inspection device automatically determines the relative position by comparing calculated ultrasonic propagation data with received waveforms through correlation analysis. This self-determination process eliminates the need for separate preliminary position measurement steps while maintaining high alignment precision.
Solution Approach 2:
The patent replaces physical position measurement methods with computational determination. By using ray tracing and correlation functions to calculate the optimal position based on waveform matching, the system achieves precise alignment without requiring additional mechanical measurement steps or external positioning equipment.
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 quick and accurate identification of defect echoes and shape echoes by automatically aligning inspection data with shape data, improving inspection efficiency and accuracy, especially in complex or hard-to-reach areas like pressure containers.
Implementation Method 1
an array type ultrasonic probe having a plurality of piezoelectric elements is used and wavefronts of ultrasonic waves transmitted from the piezoelectric elements interfere with each other
Implementation Method 2
the piezoelectric element transmits an ultrasonic wave and receives the reflected ultrasonic wave
Implementation Method 3
wavefronts of ultrasonic waves transmitted from the piezoelectric elements interfere with each other to form a synthesized wavefront that propagates
Data Source
AI summary
An ultrasonic inspection method and an ultrasonic inspection device allow three-dimensional inspection data and three-dimensional shape data to be appropriately positioned on a display screen and allow a defect echo and a shape echo to be quickly identified even when information on the relative positions of a probe and an object to be inspected is not provided. The ultrasonic inspection data that is generated from the waveforms of ultrasonic waves received by an ultrasonic probe is compared with a plurality of ultrasonic propagation data pieces calculated by a ray tracing method on the basis of the three-dimensional shape data on an object to be inspected. The position of the three-dimensional inspection data or the three-dimensional shape data is moved relative to the other data position on the basis of the comparison results, thereby displaying the three-dimensional inspection data and the three-dimensional shape data while overlapping each other.