Nanoscale Spectrometer-on-a-Chip for Aircraft Fuel Leak Detection
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Solution Overview
Problem
Fuel leaks and moisture build-up in aircraft fuel distribution systems and holding tanks lead to corrosion, requiring costly and time-consuming visual inspections, which can result in downtime and wasted resources, especially when no issues are found.
Innovation Solution
A liquid detection device utilizing nanoscale spectrometers-on-a-chip secured with fluid-absorptive elements for continuous monitoring of leaks and moisture, capable of distinguishing between different fluids and performing spectral analysis to identify components, thereby minimizing false alarms and enabling real-time detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If visual inspection methods are used to detect fuel leaks and moisture, then detection capability is provided, but significant downtime and high costs occur due to costly removal of galleys, lavatories, panels and floorboards
Solution Approach 1:
The patent applies preliminary action by installing detection chips and absorptive materials during the manufacturing phase or before deployment. The system is pre-configured with spectrometer chips positioned behind absorptive materials at locations where fuel leaks or moisture may occur, enabling immediate detection without requiring subsequent disassembly or installation during operation.
Solution Approach 2:
The patent replaces the mechanical visual inspection system with an optical detection system. Instead of physically removing panels and visually examining surfaces, the system uses spectrometer chips that optically analyze fluid samples absorbed by the material, substituting mechanical disassembly with non-invasive optical measurement.
2Reliability
If visual inspection methods are used to detect fuel leaks and moisture, then detection capability is provided, but high inspection costs occur due to many man-hours required
Solution Approach 1:
The detection system is self-service in that it automatically detects and identifies fuel leaks or moisture without requiring manual inspection. The spectrometer chip continuously monitors the absorptive material and automatically analyzes any absorbed fluid, eliminating the need for human inspectors to physically examine each panel and reducing labor costs.
Solution Approach 2:
The patent replaces the labor-intensive mechanical inspection process with an automated optical analysis system. The spectrometer chip performs rapid spectral analysis of absorbed fluids, substituting manual visual inspection with automated scientific measurement, thereby reducing both time and cost.
3Reliability
If visual inspection is performed but no moisture or corrosion is found, then inspection is completed, but time and money are wasted
Solution Approach 1:
The detection system operates continuously rather than through periodic inspections. The spectrometer chip continuously monitors the absorptive material for the presence of fuel or moisture, providing ongoing detection without interruption. This continuous operation eliminates wasted resources by only consuming energy when detection is actually needed and providing immediate alerts when issues are detected.
Solution Approach 2:
The system incorporates feedback through the spectrometer chip's continuous monitoring and analysis capability. When fluid is absorbed by the material, the chip immediately detects and analyzes it, providing real-time feedback about the condition of fuel lines or moisture presence. This feedback mechanism prevents wasted resources by immediately identifying problems rather than continuing unnecessary inspection cycles.
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 solution allows for continuous, efficient detection of fuel leaks and moisture build-up, reducing manual labor and downtime, improving fleet safety by providing real-time monitoring across various conditions, and reducing operating costs through low-power, low-cost, and lightweight monitoring systems.
Implementation Method 1
a fluid-absorptive element for absorbing liquid at the location and also securing the chip to the structure
Implementation Method 2
Fluid absorbed by the element is analyzed by the spectrometer
Data Source
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AI summary
A liquid detection device for detecting liquid at a location on a structure includes a nanoscale spectrometer-on-a chip, and a fluid-absorptive element for absorbing liquid at the location and also securing the chip to the structure. Fluid absorbed by the element is analyzed by the spectrometer.