Nanocarbon Separation Device Using Electrical State Evaluation
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Solution Overview
Problem
Existing nanocarbon separation methods lack objective determination of separation state and accurate end point, leading to inefficiencies and reduced reproducibility in separating nanocarbons with different properties.
Innovation Solution
A nanocarbon separation device and method that includes a separation tank with electrodes and evaluation means to objectively determine the separation state of metallic and semiconducting nanocarbons through physical or chemical state evaluation, allowing for automated operation and improved work efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If visual determination method is used to judge separation end point, then operation simplicity is maintained, but measurement precision and reliability of separation state determination deteriorate
Solution Approach 1:
The patent replaces the mechanical/visual observation method with an electrical measurement system. Specifically, it measures electrical potential distribution or current characteristics in the dispersion liquid to objectively determine separation state, substituting subjective visual judgment with precise electrical measurements.
Solution Approach 2:
The patent introduces an intermediary measurement system (electrodes, potential measurement devices) that indirectly assesses the separation state by measuring electrical properties of the dispersion liquid, which change as separation progresses. This intermediary provides objective data without requiring direct visual observation of the nanocarbon separation.
2Productivity
If manual operation is used for separation process, then device complexity is low, but productivity and work efficiency deteriorate
Solution Approach 1:
The patent implements a feedback control system where the measurement results (electrical potential or current characteristics) are continuously monitored and used to control the separation process. The system automatically adjusts or terminates the separation based on the measured parameters, creating a closed-loop control that improves productivity while maintaining manageable device complexity.
Solution Approach 2:
The separation system performs self-assessment through the integrated measurement means, automatically determining when separation is complete without requiring manual intervention. The system uses its own measurement capabilities to control the separation process, reducing the need for external monitoring and manual operation.
3Manufacturing precision
If separation end point is not accurately determined, then operation time is reduced, but manufacturing precision and reproducibility deteriorate
Solution Approach 1:
The patent establishes predetermined reference values or criteria for separation completion based on electrical measurement parameters. By setting these criteria in advance, the system can quickly and accurately determine when separation is complete, avoiding both premature termination and excessive processing time, thus improving reproducibility without sacrificing efficiency.
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 reproducible separation of nanocarbons by objectively determining the separation state and end point, enhancing the precision and efficiency of the separation process.
Implementation Method 1
separating the metallic nanocarbons and the semiconducting nanocarbons by applying a direct current voltage between a first electrode provided at an upper part in the separation tank and a second electrode provided at a lower part in the separation tank, to cause metallic nanocarbons included in the dispersion liquid to move toward the first electrode, and to cause semiconducting nanocarbons included in the dispersion liquid to move toward the second electrode
Data Source
AI summary
A nanocarbon separation device includes a separation tank that is configured to accommodate a dispersion liquid including nanocarbons, a first electrode provided at an upper part in the separation tank, a second electrode provided at a lower part in the separation tank, an evaluation unit that is configured to evaluate a physical state or a chemical state of the dispersion liquid, and a determination unit that is configured to determine a separation state between metallic nanocarbons and semiconducting nanocarbons included in the dispersion liquid from the physical state or the chemical state.