Gas Detection Using Optical and Ion Mobility Analysis
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing gas detection technologies, such as flame spectroscopy and ion analyzers, struggle with ambiguous identification of toxic compounds due to element-specific or fragment-specific information, require hazardous hydrogen for operation, and involve complex and inefficient energy sources, leading to limited resolution and regulatory challenges.
Innovation Solution
A device combining optical analysis with ion mobility spectrometry, using a gas discharge device instead of hydrogen for ionization, allowing simultaneous detection and identification of gaseous pollutants through emission lines and ion spectra.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If flame spectroscopy is used for detecting toxic gases, then detection sensitivity is improved, but device complexity and safety risks increase due to hydrogen requirement
Solution Approach 1:
The patent extracts and removes the hydrogen requirement from the detection system by replacing the hydrogen flame ionization source with an alternative ionization method that does not depend on hydrogen, thereby eliminating the associated safety risks and complexity while maintaining detection capability
Solution Approach 2:
The patent substitutes the mechanical/chemical hydrogen flame system with an electrical field-based ionization system, replacing the combustion-based ionization mechanism with a field-based approach that achieves similar ionization effects without the hazards of hydrogen
2Power
If hydrogen is used for maintaining the flame, then ionization efficiency is improved, but weight and safety concerns increase
Solution Approach 1:
The patent removes the hydrogen storage and delivery components from the system, extracting the weight burden while replacing the function with a lighter, integrated ionization source that generates ions through electrical field action rather than chemical combustion
Solution Approach 2:
The ionization system is designed to generate required ions through self-contained electrical field mechanisms within the device, eliminating the need for external hydrogen supply infrastructure and reducing overall system weight
3Speed
If optical detection is used for identifying compounds, then detection speed is improved, but identification accuracy deteriorates due to element-specific information limitation
Solution Approach 1:
The patent merges optical detection capabilities with mass spectrometric analysis in a single integrated system, combining the speed advantages of optical methods with the identification precision of mass spectrometry to achieve both rapid and accurate compound identification
Solution Approach 2:
The detection system is designed with multi-functional capabilities, serving both as a rapid optical detector and as a precise mass spectrometer, allowing the same device to perform both speed-critical screening and accuracy-critical identification functions
4Weight of moving object
If metal hydride storage is used for hydrogen, then portability is improved, but energy efficiency deteriorates due to thermal energy requirements
Solution Approach 1:
The patent extracts and eliminates the metal hydride storage system and its associated thermal management requirements, replacing them with an electrical field-based ionization approach that consumes energy only during the detection phase rather than requiring continuous thermal input for hydrogen release
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 precise and unambiguous identification of toxic substances in low concentrations without radioactive sources or hydrogen, enhancing selectivity and reducing device weight and energy consumption.
Implementation Method 1
molecules are excited by a low-energy pulsed plasma source
Implementation Method 2
using a gas discharge device instead of hydrogen for ionization
Implementation Method 3
the emission lines are used to detect gaseous substances
Implementation Method 4
optical emission lines indicate the presence of phosphorus-containing or sulfur-containing compounds
Implementation Method 5
ion analyzers separate ions according to transit times in a drift gas or according to a mass/charge ratio
Data Source
Figure 1
Figure 2~3
AI summary
The invention relates to a device and a method for detecting gaseous pollutants, in which a measuring gas is subjected to optical analysis and an analysis of the ions.