Reconfigurable Mass Spectrometer Analyzer for Precision Ion Detection
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Solution Overview
Problem
Mass spectrometers face challenges in maintaining detection signal precision, particularly for low-concentration components, due to saturation issues and variations in ion source characteristics over time, which affect measurement accuracy and sensitivity.
Innovation Solution
The analyzer incorporates a reconfigurable ionizer and detection unit with multiple ion sources and detection elements, allowing for adaptive voltage and current adjustments, and dynamic switching of detection patterns to compensate for ion source changes and maintain optimal measurement conditions across a wide concentration range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single detection pattern is used, then device complexity is reduced, but the ability to measure both high- and low-concentration components with high precision is compromised
Solution Approach 1:
The detection unit is made dynamic through reconfigurable detection patterns that can be switched based on measurement requirements. The system adapts its detection configuration in real-time without requiring physical reconfiguration of hardware, maintaining versatility while managing complexity through software/control logic
Solution Approach 2:
The detection unit achieves multi-functionality by using a single detection array that can operate in multiple detection patterns. The same physical detectors serve different measurement purposes (high-concentration vs. low-concentration detection) by changing how their signals are processed and combined, eliminating the need for separate detection systems
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 enables precise measurement of both high- and low-concentration components by adjusting ionization and detection settings, extending the range of measurable concentrations and maintaining high sensitivity and accuracy over the long term.
Implementation Method 1
an ionizer unit that ionizes molecules to be analyzed
Implementation Method 2
The detection elements may be secondary electron multiplier type elements or CCD type elements. The plurality of detection elements may be laid out in two dimensions or may be laid out in three dimensions.
Data Source
AI summary
An analyzer includes: an ionizer unit that ionizes molecules to be analyzed; a filter unit that selectively passes ions generated by the ionizer unit; and a detection unit that detects ions that have passed the filter unit. The detection unit includes a plurality of detection elements disposed in a matrix, and the analyzer further includes a first reconfiguration unit that switches between detection patterns including detection elements to be enabled for detection out of the plurality of detection elements. The ionizer unit includes a plurality of ion sources, and the analyzer further includes a driving control unit that switches the connections of the plurality of ion sources based on changes in characteristics of the ion sources.