Spectrophotometric Analysis System with Dynamic Light Intensity Adjustment

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Solution Overview

Problem

Traditional spectrophotometric analysis systems for liquid solutions are prone to inaccurate measurements due to dirt accumulation and aging components, requiring frequent maintenance, and are limited to analyzing a single substance type, necessitating multiple systems for different analyses.

Innovation Solution

A method and system that adjust the luminous intensity of a substantially monochromatic beam based on the cleanliness of the measurement chamber and component aging, using threshold voltage values to emit error signals or adjust excitation voltage, allowing for single-system analysis of multiple substances and extending maintenance intervals.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional spectrophotometric analysis systems use a fixed luminous intensity beam, then the system structure is simple, but measurement accuracy deteriorates due to dirt accumulation and component aging

Engineering Contradiction:
Improvemeasurement accuracyVSAvoidsystem structure complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent implements dynamic adjustment of the light source luminous intensity based on detected chamber cleanliness and component aging conditions. The system transitions from a fixed intensity beam to a dynamically adjustable beam, allowing the luminous intensity to be modified in response to environmental changes and component degradation, thereby maintaining measurement accuracy without requiring frequent maintenance

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system incorporates feedback mechanisms where sensors continuously monitor the measurement chamber cleanliness and light source/detector condition. This feedback information is used to automatically adjust the luminous intensity and compensate for degradation effects, creating a closed-loop control system that maintains measurement precision while reducing manual intervention requirements

Inventive Principle:
Principle #23Feedback

2Adaptability or versatility

If traditional systems are designed for single substance analysis, then the device complexity is low, but adaptability deteriorates requiring multiple systems for different analyses

Engineering Contradiction:
Improveanalysis type versatilityVSAvoidsystem configuration complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a universal spectrophotometric analysis system capable of analyzing multiple different substances through a single configuration. The system uses adjustable parameters including variable wavelength selection and adaptive luminous intensity control that can be optimized for different analytes, eliminating the need for multiple dedicated systems while maintaining ease of operation through automated parameter optimization

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Productivity

If traditional systems operate with constant luminous intensity, then energy consumption is stable, but productivity deteriorates due to frequent maintenance requirements

Engineering Contradiction:
Improveanalysis throughputVSAvoidmaintenance time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The system implements self-service functionality where the apparatus automatically monitors its own condition through integrated sensors that detect chamber cleanliness and component aging. The system performs self-diagnosis and automatically adjusts operational parameters to compensate for degradation, enabling extended operation between maintenance cycles and significantly reducing the time lost to manual maintenance interventions

Inventive Principle:
Principle #25Self-service

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 reduces maintenance frequency, enables analysis of multiple substances with a single setup, and maintains measurement accuracy by dynamically adjusting beam intensity according to chamber cleanliness and component condition.

Implementation Method 1

a substantially monochromatic light source (4), configured to emit a substantially monochromatic beam (4)

Methodology Applied
Scientific EffectLight emission: Light

Implementation Method 2

the luminous intensity Iout associated with such a beam, detected after it has passed through the sample at the end of an optical path of defined length

Methodology Applied
Scientific EffectLight absorption: Absorption (EM radiation)

Implementation Method 3

one detecting device (5), configured to detect the substantially monochromatic beam (4) output from the measurement chamber (3)

Methodology Applied
Scientific EffectPhotodetection: Photoelectric Effect

Data Source

PatentEP3881057B1Method and system for spectrophotometric analysis of a sample
Publication Date: 2023.10.25 CHEMITEC SRL
  • EP3881057B1 patent drawingFigure 1
  • EP3881057B1 patent drawingFigure 2
  • EP3881057B1 patent drawingFigure 3~4

AI summary

Method (1) for the spectrophotometric analysis of a sample (2) of a liquid solution, in one measurement chamber (3), comprising the following steps of: BO. supplying said at least one sample (2) of said liquid solution into said measurement chamber (3) from said duct (81) of the hydraulic circuit, with which said measurement chamber (3) is selectively in fluid communication; B. mixing said at least one sample (2) of said liquid solution with a corresponding reagent substance in said measurement chamber (3); C. generating at least one substantially monochromatic beam (4) of luminous intensity (L) and wavelength (λο), wherein said wavelength (λο) corresponds to one compound obtained by the reaction of a substance of interest to be quantified, contained in said sample (2) of said thus mixed liquid solution with said corresponding reagent substance; D. illuminating, by means of said at least one emitting device (6), said sample (2) so mixed of said liquid solution, with said at least one substantially monochromatic beam (4), through said at least one inlet opening (31) of said measurement chamber (3), along said optical path (33); E. detecting said at least one substantially monochromatic beam (4), at the end of said optical path (33); and F. processing said at least one substantially monochromatic beam (4) thus detected, to determine the concentration of the said substance to be quantified. The method comprises one step A2, preliminary to step C, for the determination of the luminous intensity (lin) of the substantially monochromatic beam (4), based on the cleaning state of the measurement chamber (3) and/or ageing of the at least one emitting device (6) and/or ageing of the at least one detecting device (5), whereby the worse is the cleaning state of the measurement chamber (3) and/or the greater is the ageing state of the at least one emitting device (6) and/or said at least one detecting device (5), the higher is the luminous intensity (lin) of the substantially monochromatic beam (4).