X-ray Fluorescence Analyzer Sample Height Control
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Solution Overview
Problem
The reliability of analysis results from conventional X-ray fluorescence analyzers varies with the state of sample placement on the sample stage, leading to potential undetection of regulated substances even when present in small amounts.
Innovation Solution
An X-ray fluorescence analyzer is configured with a sample stage, X-ray source, detector, analyzer, measuring device, determination unit, and notification unit to assess and notify on the reliability of sample placement, ensuring accurate analysis by adjusting the sample position if necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the sample is placed on the sample stage without strict height control, then the ease of operation is improved, but the reliability of the analysis result deteriorates
Solution Approach 1:
The system performs preliminary measurement of the sample surface height before analysis using a non-contact measuring device. This preliminary action allows the system to detect height deviations early and notify the operator before the analysis begins, preventing unreliable results without requiring strict manual height control during sample placement.
Solution Approach 2:
The system implements feedback by comparing the measured sample surface height with the reference height and notifying the operator of any deviations. This feedback mechanism allows the operator to adjust the sample position based on objective height information, ensuring reliable analysis results while maintaining ease of operation through automated monitoring rather than manual precision control.
2Ease of operation
If the sample surface height is not within tolerance, then the ease of operation is improved, but the detection capability of regulated substances deteriorates
Solution Approach 1:
The system performs preliminary measurement of the sample surface height before analysis using a non-contact measuring device. This preliminary action allows the system to detect height deviations early and notify the operator before the analysis begins, preventing unreliable results without requiring strict manual height control during sample placement.
Solution Approach 2:
The system implements feedback by comparing the measured sample surface height with the reference height and notifying the operator of any deviations. This feedback mechanism allows the operator to adjust the sample position based on objective height information, ensuring reliable analysis results while maintaining ease of operation through automated monitoring rather than manual precision control.
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 analyzer effectively recognizes and addresses the reliability issues of sample placement, ensuring accurate detection of regulated substances and maintaining analysis reliability by providing real-time notifications and adjustments.
Implementation Method 1
an X-ray source configured to irradiate the sample with primary X-rays from below the sample stage through the opening
Implementation Method 2
a detector configured to detect fluorescence X-rays generated from the sample
Data Source
AI summary
An X-ray fluorescence analyzer includes a sample stage having an opening, the sample stage being configured to place a sample thereon so that the sample is exposed from the opening, an X-ray source for irradiating the sample with primary X-rays from below the sample stage through the opening, and a detector for detecting fluorescence X-rays generated from the sample. It further includes an analyzer for analyzing the constituent elements based on the fluorescence X-rays, a measuring device for measuring a height of a surface of the sample exposed from the opening, a determination unit for determining whether a height difference between the height measured by the measuring device and a height of the upper surface of the sample stage is within a tolerance, and a notification unit for notifying a determination result of the determination unit. With this, the reliability of the analysis result can be recognized.