Spectroscopy Source-Detector Link Quality Analysis
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Solution Overview
Problem
Spectroscopy data is often unreliable due to noise and environmental conditions, leading to false or meaningless results if corruption is undetected.
Innovation Solution
A spectroscopy system with multiple light sources and detectors uses frequency modulated light beams to determine a link phase differential and quality metric for each source-detector pair, discarding low-quality data based on a threshold.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If spectroscopy data is collected without quality verification, then data collection is simple and fast, but the reliability of the data is poor due to noise and environmental conditions
Solution Approach 1:
The system performs preliminary quality assessment of source-detector links by calculating link quality metrics before data collection. This preliminary action identifies and flags poor-quality links in advance, preventing unreliable data from being collected in the first place, thereby improving data reliability without requiring complex post-processing
Solution Approach 2:
The system implements feedback mechanisms where link quality metrics are continuously monitored and used to adjust data collection parameters. Poor-quality links are identified through feedback from the quality metric calculation, and the system responds by excluding these links from analysis or adjusting acquisition parameters, creating a closed-loop quality control system
2Measurement precision
If all spectroscopy data is used for analysis, then analysis is comprehensive, but false or meaningless results occur due to corrupted data from poor-quality links
Solution Approach 1:
The system extracts and identifies poor-quality source-detector links using link quality metrics, and removes these problematic data points from the analysis set. By taking out only the corrupted data portions while retaining high-quality data, the system maintains measurement precision without unnecessary time loss from processing bad data
Solution Approach 2:
The system changes the parameter of data inclusion by dynamically determining which source-detector links meet quality thresholds. Links below the threshold are excluded from analysis while those above are included, creating a selective data processing approach that maintains accuracy while optimizing processing time by focusing only on reliable data
3Reliability
If link quality metrics are calculated for all source-detector pairs, then data quality is improved, but computational complexity and processing time increase
Solution Approach 1:
The system performs quality metric calculation selectively rather than universally. It calculates link quality metrics for source-detector pairs that meet certain criteria or are suspected of having quality issues, rather than computing metrics for all possible pairs. This partial action approach maintains data quality for critical links while reducing unnecessary computational energy expenditure on obviously good links
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
Improves data reliability by identifying and eliminating low-quality data, ensuring accurate subsequent analysis.
Implementation Method 1
Each light source may be configured to output a frequency modulated light beam of a different frequency than the other light sources
Implementation Method 2
The detector-specific data may be representative of scattered and unabsorbed light received at the first detector resultant from the frequency modulated light beams interacting with the object
Implementation Method 3
The control circuitry may be configured to determine, for a source-detector link defined by a pairing of the first light source with the first detector, a link phase differential based on received phase information extracted from the detector-specific data for the source-detector link and source phase information of the first frequency modulated light beam
Data Source
AI summary
A spectroscopy system includes a plurality of light sources, a plurality of detectors, and control circuitry. The control circuitry may be configured to control each light source to output frequency modulated light beams into an object and receive detector-specific data from the detectors. The detector-specific data may be representative of scattered and unabsorbed light resultant from the frequency modulated light beams interacting with the object. The control circuitry may be further configured to determine, for a source-detector link defined by a pairing of a first light source with a first detector, a link phase differential based on received phase information extracted from the detector-specific data for the source-detector link and source phase information of a first frequency modulated light beam from the first light source. Also, the control circuitry may be configured to determine a source-detector link quality metric for the source-detector link based on the link phase differential.