Solid-Material Ion Polarity Measurement With Asymmetric Electrodes
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Solution Overview
Problem
Existing methods are unable to measure the polarity of ions contained in a solid material.
Innovation Solution
A physical property measurement method involving a pair of electrodes with a periodically varying and reversing polarity voltage applied between a material and an insulation layer on one side, allowing measurement of ion polarity and amount in a solid material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional measurement methods (liquid sealing or powder suspension) are used, then ion impurity amount can be measured, but ion polarity cannot be measured and the material must be in liquid or suspended form
Solution Approach 1:
The patent changes the physical state parameter of the material from liquid/suspended to solid by forming a thin film, and changes the electrode configuration parameter from symmetric to asymmetric (with insulation layer on only one side), enabling both solid material measurement and polarity detection simultaneously
Solution Approach 2:
The patent introduces asymmetry by placing an insulation layer on only one side of the solid material between the electrodes. This asymmetric configuration creates different electric field distributions that enable detection of ion polarity, while maintaining the ability to measure ion impurity amounts in solid materials
2Measurement precision
If symmetric electrode configuration is used, then simple structure is maintained, but ion polarity measurement is not possible
Solution Approach 1:
The patent introduces asymmetry by placing an insulation layer on only one side of the solid material between the electrodes. This asymmetric configuration creates different electric field distributions that enable detection of ion polarity, while maintaining the ability to measure ion impurity amounts in solid materials
Solution Approach 2:
The insulation layer acts as an intermediary element that modifies the electric field distribution asymmetrically. This intermediary component enables polarity detection by creating distinct measurement conditions for positive and negative ions without requiring complex electrode structures
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 the measurement of ion polarity and amount in solid materials, improving detection accuracy and applicability to devices like organic EL displays.
Implementation Method 1
applying a voltage between a pair of electrodes in an element for physical property measurement, the voltage periodically varying and periodically reversing in polarity... and measuring a physical property of the material to be measured based on a current flowing through the element
Data Source
AI summary
A physical property measurement method includes applying a voltage, which periodically varies and periodically reverses in polarity, between a pair of electrodes in an element for physical property measurement. The element for physical property measurement includes: a material to be measured; an insulation layer disposed on only one of both sides of the material to be measured in a thickness direction thereof; and the pair of electrodes between which the material to be measured and the insulation layer are interposed in the thickness direction. The physical property measurement method also includes measuring a physical property of the material to be measured based on a current flowing through the element for physical property measurement as a result of the application of the voltage. The measuring of the physical property of the material to be measured includes measuring a polarity of an ion contained in the material to be measured.