Multi-Spectral Transducer for Substance Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current gas detection methods are limited by poor signal-noise ratio (SNR) and low detection sensitivity, often focused on specific absorption bands in the short-wave infrared (SWIR) spectrum, and are not suitable for detecting substances in various environments, including confined and open spaces.
Innovation Solution
The development of a transducer system that uses optical filters to selectively transmit and detect electromagnetic radiation at preselected wavelengths, including chambers to amplify and detect radiation, and an electromagnetic radiation detector to optimize signal-to-noise ratio, allowing detection of substances in different spectral ranges such as VISNIR, SWIR, MWIR, and LWIR, and from various platforms like satellites and aerial vehicles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If detection is focused on specific absorption bands in SWIR spectrum, then device complexity is reduced, but detection sensitivity deteriorates
Solution Approach 1:
The patent segments the detection system into multiple independent detector modules, each optimized for specific spectral ranges (SWIR, MWIR, LWIR). This allows the system to maintain low complexity within each segment while achieving high overall sensitivity through the combination of multiple segments covering different absorption bands of target substances.
Solution Approach 2:
The patent extends detection from a single spectral dimension (SWIR only) to multiple spectral dimensions by incorporating detectors for SWIR, MWIR, and LWIR ranges. This dimensional expansion enables simultaneous detection of substances with different absorption characteristics, improving detection sensitivity without requiring excessive complexity in any single detector channel.
2Ease of manufacture
If fixed SWIR spectrum detection is used, then manufacturing cost increases, but adaptability to different environments deteriorates
Solution Approach 1:
The patent implements a universal detection platform that incorporates multiple detector types (SWIR, MWIR, LWIR) within a single integrated system. This multi-functional design allows the same device to detect various substances across different environments (confined spaces, open spaces, atmospheric conditions) without requiring separate specialized equipment, thereby improving adaptability while maintaining manufacturing efficiency through standardized platform architecture.
3Reliability
If detection is performed in confined spaces with limited radiation, then signal-to-noise ratio deteriorates, but detection capability is maintained
Solution Approach 1:
The patent merges detection signals from multiple spectral ranges (SWIR, MWIR, LWIR) and combines them with reference measurements from background regions. This signal integration approach allows the system to maintain reliable detection capability in confined spaces by aggregating weak signals across multiple channels, thereby improving the effective signal-to-noise ratio through combined information from all detector modules.
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 system enhances detection sensitivity and flexibility, enabling robust detection and measurement of gases and substances in diverse environments by shifting detection ranges to optimize signal quality and reducing interference, thereby improving the accuracy of gas concentration determination.
Implementation Method 1
a filter configured to transmit electromagnetic radiation at preselected wavelengths
Implementation Method 2
an electromagnetic radiation detector configured to detect electromagnetic radiation at wavelengths different from the preselected wavelengths transmitted by the filter
Implementation Method 3
one or more chambers... to amplify and detect radiation
Data Source
AI summary
Systems, methods and devices to detect target substances in confined or open spaces, and from the ground or remote locations are disclosed. A system includes a radiation emission source and one or more transducers configured to detect target substances. The transducer to detect target substances includes a filter that allows various wavelengths of light to pass through while attenuates or reflects others; and one or more chambers disposed within the optical path of the filter. The transducer may also include electromagnetic radiation detectors to detect electromagnetic radiation at wavelengths different from the wavelengths transmitted by the filter. The systems, methods, and devices disclosed allow shifting the detection range of phenomena in which the detection/observation technology is not efficient to other detection ranges where detection can be optimized.