Multi-axis Ultrasonic Scanner Calibration Verification Tool
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Verifying the calibration of multi-axis ultrasonic scanners is challenging due to the difficulty in using mathematical design parameters and kinematic models, which complicates the validation of actual movement versus instructed movement, especially along multiple axes.
Innovation Solution
A calibration verification tool with a plurality of mutually oblique plates is used, where a digital model is registered within the scanner's coordinate frame, allowing the scanner to measure physical properties to determine orientations and verify calibration based on predetermined criteria.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mathematical design parameters and kinematic models are used to verify calibration, then the verification process can be performed, but the complexity and difficulty of the verification process increases
Solution Approach 1:
A physical calibration tool with features at known positions serves as an intermediary between the ultrasonic scanner and the calibration verification process. The tool includes a body with multiple features (such as holes or markers) arranged at predetermined positions, which the scanner measures to verify its calibration status without requiring complex mathematical models.
2Reliability
If mathematical design parameters are used for calibration verification, then verification can be performed, but the ease of operation decreases
Solution Approach 1:
The calibration tool is designed to be self-contained with all necessary calibration features integrated into its body. The tool automatically provides the reference framework needed for verification when placed in the scanner's field of view, eliminating the need for operators to manually set up complex mathematical parameters or reference frames.
3Reliability
If kinematic models are used to verify rotational axis movement, then calibration can be assessed, but the measurement precision and accuracy of actual versus instructed movement decreases
Solution Approach 1:
The patent replaces mathematical kinematic models with a physical measurement approach. The calibration tool contains physical features at known positions that the ultrasonic scanner directly measures using its ultrasonic detection capability. This direct physical measurement approach provides more accurate verification of actual scan head movement compared to indirect mathematical modeling.
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 method provides a practical and effective way to verify the calibration of multi-axis ultrasonic scanners, simplifying the process and improving the accuracy of rotational axis control, compared to traditional mathematical methods.
Implementation Method 1
using the digital model, controlling the multi-axis ultrasonic scanner to measure a physical property of a plate of the tool
Data Source
AI summary
A method and apparatus for assessing a calibration of a multi-axis ultrasonic scanner, the method comprising: providing a calibration verification tool (100), comprising a plurality of mutually oblique plates (110-140) defining surfaces at predefined angles with respect to one another; providing a digital model of the tool; registering, by the ultrasonic scanner, the tool (100) within the reference frame; controlling the ultrasonic scanner to measure a plate (110-140) to determine a reference signal; measuring each plate (110-140); using the reference signal and the plate measurements, determining an orientation of the ultrasonic scanner when each plate was measured; and, using the determined orientations, verifying whether or not the ultrasonic scanner calibration.