Spectroscopic Analysis Wavelength Selection for Time-Limited Accuracy
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Solution Overview
Problem
Existing spectroscopic analysis methods require long measurement times or may miss important spectral data when constrained by a limited measurement period.
Innovation Solution
A spectroscopic analysis system that allows for the setting of measurement conditions to optimize measurement time while maintaining accuracy by using a control unit to generate a regression model based on predefined measurement constraints, employing methods like PLS regression and genetic algorithm-based wavelength selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If measurement is performed across the entire wavelength region to obtain high-resolution measurement results, then measurement accuracy is improved, but measurement time increases significantly
Solution Approach 1:
The patent extracts only the necessary wavelength regions required for accurate measurement rather than measuring the entire wavelength range. The control unit determines and selects specific wavelength regions based on the measurement target, thereby reducing measurement time while maintaining measurement accuracy by focusing resources on critical spectral areas.
Solution Approach 2:
The patent applies different measurement strategies to different wavelength regions. Instead of uniform high-resolution measurement across all wavelengths, the system selectively applies high-resolution measurement only to locally important wavelength regions that contain relevant spectral information for the specific measurement target, while using coarser resolution or skipping less important regions.
2Productivity
If measurement is restricted to specific wavelength regions to reduce measurement time, then measurement speed is improved, but important spectral data may be missed
Solution Approach 1:
The patent performs preliminary determination of the measurement target and pre-calculates the necessary wavelength regions before actual measurement begins. The control unit uses information about the measurement target to predict which wavelength regions will contain important spectral information, thereby preparing an optimized measurement plan that ensures critical data is captured while minimizing measurement time.
Solution Approach 2:
The system incorporates feedback mechanisms where measurement results and target information are used to dynamically adjust wavelength region selection. The control unit determines necessary wavelength regions based on feedback from the measurement target characteristics, ensuring that important spectral data is captured while avoiding unnecessary measurements in regions that won't contribute meaningful information.
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 accurate composition discrimination and concentration quantification within a restricted measurement period by optimizing wavelength regions and measurement conditions, improving efficiency in applications like in-line factory analysis.
Implementation Method 1
measuring fluorescence intensity while changing an excitation wavelength that is radiated and a fluorescence wavelength that is observed
Implementation Method 2
A spectroscopic analysis method is known as a method for measuring a spectrum of light when a substance absorbs or emits light
Data Source
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Figure 2A~2B
Figure 2C
AI summary
A spectroscopic analysis system includes: an operation panel configured to receive an input of at least one of an upper limit value of a measurement period of a spectroscopic analysis spectrum or a lower limit value of measurement accuracy as a user setting condition related to measurement of the spectroscopic analysis spectrum of a sample; and a control unit configured to derive a predetermined recommended measurement condition that satisfies the user setting condition and cause a display unit to display the recommended measurement condition, in which the recommended measurement condition is at least one of a wavelength range of light to be used for measurement of the spectroscopic analysis spectrum, a sampling interval of a wavelength of the light, a slit width of a diffraction grating of a spectroscope that disperses the light, or a sweep speed of the wavelength of the light.