Gas Feeding Device with Computer-Controlled Regulation
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Solution Overview
Problem
Existing gas supply systems for analysis devices, such as mass spectrometers, require skilled operators to adjust gas flows accurately, leading to inconsistent measurement results due to the complexity of fractionation prevention during gas transport, particularly in diffusion processes.
Innovation Solution
A device with computer-controlled regulation of carrier gas supply, using multiple capillaries with different flow rates and actuators, allows for precise adjustment of gas concentrations and flows based on sensor data and previous parameters, ensuring optimal sample and reference gas concentrations for analysis devices like mass spectrometers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual adjustment of gas flows is used, then operator flexibility is maintained, but measurement consistency deteriorates due to operator skill variability
Solution Approach 1:
The system automatically adjusts carrier gas flow rates based on detected sample gas concentrations without requiring manual intervention. The control unit monitors the mixing zone and self-regulates the gas flows to maintain optimal analysis conditions, eliminating operator skill variability while preserving operational simplicity through automated decision-making algorithms.
Solution Approach 2:
The system implements a closed-loop feedback mechanism where the control unit continuously monitors gas concentrations in the mixing zone and adjusts carrier gas flow rates accordingly. This feedback control ensures consistent measurement results by automatically compensating for concentration variations, thereby improving measurement precision while maintaining ease of operation through automated regulation.
2Measurement precision
If multiple capillaries with different flow rates are used, then gas concentration control is improved, but device complexity increases
Solution Approach 1:
The system employs dynamically selectable capillaries that can be activated or deactivated based on real-time concentration requirements. Instead of a fixed complex network, the control unit selectively engages appropriate capillaries from a modular set, allowing flexible gas concentration control while managing device complexity through programmed selection rather than permanent physical complexity.
Solution Approach 2:
The gas delivery system is segmented into multiple independent capillaries, each optimized for specific flow rate ranges. This segmentation allows the control unit to select only the necessary capillaries for each analysis condition, improving concentration control precision while reducing the effective complexity by activating only the required subset of capillaries rather than managing all simultaneously.
3Measurement precision
If computer-controlled regulation is implemented, then measurement accuracy is improved, but system complexity increases
Solution Approach 1:
The system replaces manual mechanical adjustment mechanisms with computer-controlled electronic regulation. The control unit uses electronic signals to adjust gas flow rates and capillary selection, substituting complex manual mechanical operations with simpler electronic control that achieves higher measurement accuracy while reducing the complexity of physical adjustment mechanisms.
Solution Approach 2:
The control system manages complexity by dynamically changing operational parameters (gas flow rates, capillary selections) based on detected concentration levels. Rather than requiring complex physical reconfiguration, the system achieves high measurement accuracy through software-controlled parameter adjustment, simplifying the physical device while increasing computational management.
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 solution simplifies the operation and improves measurement accuracy by automating the adjustment of gas flows, reducing operator dependency and maintaining consistent signal intensities, thus enhancing the reliability and efficiency of isotope ratio analysis.
Implementation Method 1
A special feature of apparatus for determining isotope ratios is that all components must be designed in such a way that no fractionation occurs. These can e.g. B. occur wherever transport takes place through diffusion.
Data Source
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AI summary
The process involves supplying a sample gas and a reference gas to an analyzer over an opened coupling (22), where the coupling has capillaries with different cross-sections. The concentration of the sample gas and/or reference gas is regulated through automatic, electronic flow regulation of the carrier gas, where the carrier gas flow is regulated in such a manner that the concentration of the sample gas and/or the reference gas is constant. An independent claim is also included for a device for supplying gases to an analyzer.