Mobile XRF Spectrometer In Situ Analysis
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Solution Overview
Problem
Conventional XRF systems are not optimized for in situ elemental analysis of large samples, making it difficult to analyze materials like high strength alloy steels without moving them to a laboratory setting.
Innovation Solution
A mobile and automated XRF spectrometer system with a stand having multiple stages and a movement feature, allowing the spectrometer to move in multiple axes for comprehensive analysis of large samples in situ.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional XRF systems are used, then sample analysis can be performed, but the system is not optimized for in situ analysis of large samples and requires sample transportation to laboratory settings
Solution Approach 1:
Instead of moving the sample to a stationary XRF analyzer in a laboratory setting, the patent inverts the approach by bringing the XRF spectrometer to the sample location. The mobile spectrometer system is transported to where the large sample (e.g., high strength alloy steel) is located, enabling in situ analysis without moving the sample itself. This resolves the contradiction by making the analytical device mobile rather than the sample.
Solution Approach 2:
The patent implements dynamic positioning capabilities with multiple stages (X-stage, Y-stage, Z-stage) that enable the spectrometer to move along multiple axes. This dynamic positioning system allows the spectrometer to adapt its position and orientation to analyze large samples at different locations and angles, providing the flexibility needed for in situ analysis of various sample configurations.
2Adaptability or versatility
If a mobile spectrometer system with multiple stages is used, then in situ analysis of large samples is enabled, but the device complexity increases
Solution Approach 1:
The positioning system is segmented into multiple independent stages: X-stage for horizontal movement, Y-stage for vertical movement, and Z-stage for depth adjustment. Each stage handles a specific dimension of movement, allowing the complex multi-axis positioning task to be divided into manageable, modular components. This segmentation makes the system more adaptable while keeping each individual stage relatively simple.
Solution Approach 2:
The multi-stage positioning system serves multiple functions: it enables the spectrometer to reach different positions on large samples, adjust for irregular sample surfaces, optimize detection angles, and accommodate various sample sizes and shapes. This universal positioning capability resolves the contradiction by making a single system adaptable to diverse analysis scenarios without requiring separate specialized devices.
3Productivity
If conventional stationary XRF systems are used, then measurement precision can be maintained, but productivity decreases due to sample transportation requirements
Solution Approach 1:
The mobile spectrometer system is prepared and calibrated at the sample location before analysis begins, eliminating the need for subsequent sample transportation. By bringing the complete analytical system to the sample site in advance and performing all necessary setup operations on-site, the system eliminates time loss associated with moving large samples to and from laboratory facilities, significantly improving productivity.
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 efficient elemental analysis and mapping of large samples without the need for sample transportation, providing real-time data for process control and improving analysis efficiency.
Implementation Method 1
X-ray fluorescence spectrometric measurement is used in materials analysis. XRF is a technique for determining the elemental composition and other properties, such as thickness, of a sample. XRF analyzers include an X-ray source, which irradiates the sample with sufficient energy to excite X-ray fluorescence from the elements of interest within the sample.
Implementation Method 2
XRF analyzers also include an X-ray detector for detecting X-ray scatter from the sample and the characteristic X-ray fluorescence emitted by the sample in response to the irradiation. Each element in the sample emits X-ray fluorescence at discrete energies that are characteristic of the elements present.
Data Source
AI summary
In some embodiments, an X-ray fluorescence (XRF) analysis system may include a stand having at least one stage and a movement feature. The movement feature may be configured to facilitate a movement of the stand. The system may include a spectrometer coupled to one of the at least one stage. The spectrometer may be configured to move in one or more axes to analyze a sample. The system may include a computing device communicatively coupled to the stand and the spectrometer. The computing device may have a processor with instructions to: determine a plurality of defined positions of the sample, activate an X-ray source of the spectrometer, calibrate one or more of the at least one stage, map the sample with the spectrometer, and display an elemental map of the sample on a display.