Multi-Chamber Cuvette Layout for Simultaneous Multi-Wavelength Gas Analysis
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Solution Overview
Problem
Existing spectroscopic analysis devices using cuvettes for gas analysis are complex, costly, and prone to errors due to the use of mechanically swung optical filters and require additional installation space, leading to reduced measurement dynamics and accuracy.
Innovation Solution
A multi-chamber cuvette with optically separated chambers and a dedicated illumination and detection system that allows simultaneous analysis with different wavelengths, eliminating the need for moving parts and filters, and using a one-piece extruded part made of aluminum for cost-effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If mechanically swung optical filters are used to provide different wavelengths, then multiple gas components can be detected, but the device complexity increases and measurement dynamics are reduced
Solution Approach 1:
The cuvette is divided into multiple independent measuring chambers, each optimized for specific wavelength ranges. This segmentation allows simultaneous multi-wavelength measurement without requiring mechanical filter switching, thereby reducing device complexity while maintaining the ability to detect multiple gas components
Solution Approach 2:
The patent transitions from temporal multiplexing (switching filters over time) to spatial multiplexing (multiple chambers measuring different wavelengths simultaneously). This dimensional change from time-based to space-based differentiation resolves the contradiction by enabling multi-component detection without mechanical moving parts
2Adaptability or versatility
If mechanically swung optical filters are used, then additional wavelength information can be acquired, but the susceptibility to errors increases
Solution Approach 1:
The patent replaces the mechanical filter swinging system with a static multi-chamber configuration. This substitution eliminates mechanical wear, positioning errors, and timing issues associated with moving parts, thereby improving reliability while maintaining the capability to acquire information at multiple wavelengths
3Measurement precision
If optical filters are swung into the beam path, then measurement accuracy can be improved, but the measurement time increases
Solution Approach 1:
Multiple measuring chambers operate simultaneously and continuously, eliminating the sequential filtering process. This continuous parallel operation maintains high measurement precision for each gas component while significantly reducing total measurement time compared to sequential filter-based systems
4Measurement precision
If optical elements are added to focus radiation, then detection accuracy improves, but installation space requirements increase
Solution Approach 1:
The patent integrates focusing optical elements directly into the cuvette structure itself, merging the containment function with the focusing function. This integration maintains detection accuracy while minimizing additional installation space requirements compared to separate external focusing 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 design achieves higher measurement accuracy and dynamics by allowing simultaneous analysis with two different wavelengths, reducing complexity and cost while increasing robustness and eliminating the need for mechanical filters.
Implementation Method 1
an illumination device (5), in particular comprising at least two light sources (5a, 5b), is provided, which is configured to generate light and couple it into the at least one first and second measuring chamber (3, 4)
Implementation Method 2
Depending on the components it contains and their concentrations, the gas being analyzed absorbs different wavelength ranges to varying degrees, thus reducing the radiation intensity on the receiving side accordingly
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
A spectroscopic analysis device (1) comprises a multi-chamber cuvette (2) for fluid or gas analysis, wherein the multi-chamber cuvette (2) comprises at least two measuring chambers (3, 4) into which the fluid or gas can be introduced for analysis, wherein the at least two measuring chambers (3, 4) are optically separated from each other, wherein an illumination device (5) is provided to generate light and couple it into the at least one first and second measuring chamber (3, 4, 16, 17), and wherein a detection device (9) is provided to measure an intensity of the light emitted by the fluid or gas in the first measuring chamber (3) for a first wavelength and to generate a first measurement result, and to measure an intensity of the light emitted by the fluid or gas in the second measuring chamber (4) for a second wavelength and to generate a second measurement result, wherein the first wavelength and the second wavelength are different.