Remote Air Sampling Interface for Low-Pressure Gas Analysis
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Solution Overview
Problem
Existing technologies fail to effectively address the collection of air samples from aircraft without the need for close proximity to the sample, particularly in inaccessible locations such as the cavities between insulation blankets and the aircraft skin, and cannot handle pressurized air samples.
Innovation Solution
An air monitoring system comprising an air interface with a chamber, first and second seal mechanisms, and a pump port, which allows diverted air to be collected and analyzed by a gas analyzer without increasing pressure beyond its operational limits, enabling remote sampling and real-time monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If portable gas analysis apparatus is used to collect air samples, then air samples can be analyzed for air quality and airflow detection, but the apparatus must be within 0.914 metres (3 feet) of the sample location, limiting remote sampling capability
Solution Approach 1:
The system divides the air sampling function into two separate components: (1) a remote air collection interface with pump that can be positioned at the sample location, and (2) a gas analysis apparatus that can be located remotely. The air collection interface collects and conditions the air sample, then transports it through tubing to the analysis apparatus, eliminating the need for the analyzer to be near the sample source.
Solution Approach 2:
The patent introduces an intermediary air collection interface system that acts as a mediator between the remote air sample source and the gas analysis apparatus. This interface includes a pump, tubing connections, and pressure regulation components that transfer and condition the air sample, enabling remote analysis without direct proximity between the analyzer and sample location.
2Measurement precision
If air samples are collected from inaccessible locations such as cavities between insulation blankets and aircraft skin, then moisture control analysis can be performed, but the locations are difficult to access and sample
Solution Approach 1:
The system separates the air collection function into a portable interface unit that can be manually positioned at inaccessible locations, then connected via tubing to a remote analysis system. This allows the collection point to access tight spaces while the analysis equipment remains in accessible locations.
Solution Approach 2:
The patent uses pneumatic principles with a pump system to actively draw air samples through tubing from inaccessible cavity locations. The pump creates negative pressure to pull air through the tubing and connections, enabling sample collection from locations that would be difficult to reach passively.
3Length of moving object
If pressurized air samples are collected and transported to analysis apparatus, then remote sampling is enabled, but the pressure may exceed operational limits of the gas analyzer system
Solution Approach 1:
The system dynamically adjusts the pressure of air samples during transport through the use of a pump and pressure regulation mechanisms. The pump can control the flow and pressure characteristics of the air sample, maintaining pressure within operational limits of the analysis apparatus while enabling remote sampling.
Solution Approach 2:
The patent changes the pressure parameter of the air sample during transport by using a pump system that can regulate and maintain pressure within acceptable ranges. The system monitors and adjusts pressure conditions to ensure compatibility with the gas analysis apparatus while enabling remote sample collection.
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
The system enables remote and real-time analysis of air samples from various aircraft locations, overcoming the limitations of existing technologies by allowing forerless sampling and analysis of air quality and airflow analysis.
Implementation Method 1
The pump moves the diverted air through the chamber without increasing a pressure of the diverted air greater than a pressure level for the gas analyzer system to analyze
Implementation Method 2
a first seal mechanism forms a first airtight seal at the input port when a tube is connected to the input port, and a second seal mechanism forms a second airtight seal at the sampling port when a probe for a gas analyzer system is inserted into the sampling port
Data Source
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AI summary
An air monitoring system with a controller in a computer system that operates to control a pump system to move air from a collection port for a cavity as diverted air to a tube connected to the collection port, move the diverted air into an input port of an air interface connected to the tube, through a chamber in the air interface, and out of a pump port of the air interface without increasing a pressure of the diverted air greater than a pressure level for a gas analyzer system to analyze an air sample collected from the diverted air. The controller operates to control the gas analyzer system connected to a sampling port in the air interface by a probe to obtain the air sample from the diverted air moving through the air interface and analyze the air sample to determine a set of components in the air sample.