Air Constituent Measurement System with Segmented Chambers
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Solution Overview
Problem
Existing air quality monitoring systems face challenges in providing accurate, real-time measurements due to environmental factors and delays in conventional sampling methods, while sensor-based systems are affected by external conditions like temperature, humidity, and electromagnetic interference.
Innovation Solution
An air constituent measurement apparatus with separate gas and particulate measurement subsystems, featuring real-time sensors, air conditioning for temperature and humidity control, filtration mechanisms, and protective coatings to minimize interference, allowing for intermittent control of air flow and improved accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If sensor-based air quality monitoring is used, then real-time data is provided, but measurement accuracy is affected by environmental factors such as temperature, humidity, and electromagnetic interference
Solution Approach 1:
The system divides the measurement process into separate gas measurement chamber and particulate measurement chamber, each with dedicated sensors and environmental controls. This segmentation allows independent optimization of measurement conditions for each type of pollutant, reducing cross-interference and improving overall accuracy while maintaining real-time capabilities
Solution Approach 2:
An air conditioning system acts as an intermediary between the external environment and the measurement chambers, controlling temperature and humidity within the chambers to stabilize sensor readings. This mediator isolates the sensitive sensors from direct environmental influences while allowing continuous air sampling
2Measurement precision
If conventional pollutant collection based mechanical experimental systems are used, then measurement accuracy is improved, but measurement time is extended to an hour or more
Solution Approach 1:
The system performs preliminary conditioning of the air sample by filtering it through HEPA filters and controlling environmental parameters in the measurement chambers before actual measurement begins. This preliminary preparation ensures that measurements can be completed quickly with high accuracy, eliminating the need for lengthy collection and processing periods
Solution Approach 2:
The patent replaces conventional mechanical sampling and collection systems with real-time optical and electrochemical sensors. This substitution eliminates the need for physical pollutant collection and laboratory analysis, enabling immediate measurement results while maintaining or improving accuracy through electronic detection methods
3Productivity
If sensors are exposed to surrounding air directly, then real-time measurement is achieved, but sensor accuracy is degraded by electromagnetic waves and environmental interference
Solution Approach 1:
The measurement chambers create a controlled, isolated environment for the sensors by filtering incoming air through HEPA filters and controlling environmental parameters. This inert-like environment protects sensors from harmful external influences such as electromagnetic waves and particulate interference while allowing continuous real-time measurement of air quality parameters
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 high-accuracy, real-time air quality monitoring by isolating particulate matters from gas sensors, maintaining stable environmental conditions, and reducing electromagnetic interference, thus providing reliable data on air quality parameters.
Implementation Method 1
An air conditioning system configured to maintain the temperature and humidity of the Inlet air in the measurement chamber
Implementation Method 2
An air conditioning system configured to maintain the temperature and humidity of the Inlet air in the measurement chamber
Implementation Method 3
A filtration mechanism in the gas measurement chamber is configured to filter particulates from entering the gas measurement chamber
Implementation Method 4
a protective coating for reducing the effect of electromagnetic and radio waves in the measurement chamber is provided
Implementation Method 5
an inner coating reduces the inlet of fumes into the gas measurement chamber and the particulate measurement chamber
Data Source
AI summary
Air quality measurement system, method and apparatus are described. The air quality measurement system is also referred to as air constituent measurement system. Various air-quality parameters such as, for example, particulate matter, SO2, NO2, CO, O3, H2S, CO2, HCL, NH3, CH4, VOC etc. can be measured.