Optical Analysis Apparatus for Liquid Sample Measurement
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Solution Overview
Problem
Existing methods for optical analysis of liquid samples in stirring tanks or piping systems are complicated by the need for bypasses and pumps, leading to unstable sample flow and inaccurate concentration and turbidity analysis due to differences between sampling and measurement points.
Innovation Solution
An optical analysis apparatus with a measurement unit mounted on the stirring tank or piping that includes a light source, light receiving portion, and movable optical components to adjust the optical-path-length, allowing for stable sample analysis without bypasses or pumps, and enabling accurate concentration and turbidity measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a bypass and pump are used to sample and analyze liquid samples in a stirring tank, then the liquid sample can be analyzed, but the system structure becomes complicated
Solution Approach 1:
The patent extracts the measurement function from the main stirring tank system by providing a separate measurement-portion that can be detached. This measurement-portion includes a sample chamber and optical components that are separated from the stirring tank, allowing analysis without interfering with the main reaction process while simplifying the overall system structure.
Solution Approach 2:
The system is divided into distinct functional portions: a stirring-portion for the main reaction and a measurement-portion for analysis. The measurement-portion is further segmented into a sample chamber, light source, and detector components that can be independently positioned and adjusted.
2Measurement precision
If a bypass is used to sample liquid, then analysis can be performed, but the liquid sample state becomes unstable at the measurement point
Solution Approach 1:
The patent introduces a circulation flow path that pre-stabilizes the liquid sample before it enters the measurement chamber. The circulation system ensures uniform flow and eliminates turbulence or bubbles that would otherwise be present in bypass sampling, providing a stable sample state prior to measurement.
3Measurement precision
If a bypass is used for sampling, then analysis is possible, but the sampling point and measurement point states differ, interfering with accurate analysis
Solution Approach 1:
The patent merges the sampling function and measurement function into a single integrated measurement-portion. The sample is taken directly from the stirring tank and immediately introduced into the measurement chamber without passing through a separate bypass line, ensuring that the sample state at the measurement point accurately reflects the state in the stirring tank.
4Productivity
If optical analysis is performed without stabilizing sample flow, then analysis can proceed, but concentration and turbidity cannot be accurately analyzed
Solution Approach 1:
The patent employs a circulation flow path with controlled flow dynamics that maintains stable, laminar flow through the measurement chamber. The flow rate and flow pattern are optimized to ensure uniform sample presentation to the optical detector, enabling accurate concentration and turbidity measurements while maintaining efficient analysis throughput.
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 and efficient optical analysis of liquid samples in stirring tanks or piping systems with a simple structure, improving precision and reducing system complexity by stabilizing sample flow and optimizing optical-path-length based on sample concentration.
Implementation Method 1
a light source portion that emits light with which the sample is irradiated, and a light receiving portion that receives the light transmitted through the sample
Data Source
AI summary
An optical analysis apparatus, that irradiates a liquid sample with light and analyzes the sample, includes a measurement unit that measures the sample, a light source portion that emits light with which the sample is irradiated, and a light receiving portion that receives the light transmitted through the sample. The measurement unit includes a housing provided with an opening portion for flowing in and out of the sample, an accommodation region connected to the opening portion and provided inside the housing, a movable portion provided inside the accommodation region to be movable inside the accommodation region, an irradiation portion which receives the light emitted from the light source portion and in which an inside of the accommodation region is irradiated with the light, and a light collection portion which collects the light transmitted through the sample inside the accommodation region and outputs the light to the light receiving portion.