Ion-Selective Electrode Abnormality Detection via Detergent Potential
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Solution Overview
Problem
Existing electrolyte analysis devices fail to detect abnormalities in ion selective electrodes at an early stage, relying solely on parameters measured with a sample or calibration liquid, which is insufficient for timely detection.
Innovation Solution
An electrolyte analysis device that includes an ion selective electrode and a reference electrode, with an abnormality determination unit that calculates an evaluation value using a detergent potential to assess electrode condition during cleaning, allowing for early detection of abnormalities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electrode performance parameters are measured using sample or calibration liquid, then electrode lifetime management is achieved, but abnormality detection at early stage is insufficient
Solution Approach 1:
The patent applies preliminary action by measuring electrode performance parameters using detergent solution before the electrode actually deteriorates. The detergent potential measurement is performed periodically during cleaning cycles, allowing early detection of abnormalities before they affect normal operation. This proactive approach enables preventive maintenance scheduling.
Solution Approach 2:
The patent uses detergent solution as an intermediary medium to assess electrode condition. Instead of directly measuring electrode performance with complex calibration procedures, the detergent potential serves as a simple intermediary indicator that reflects electrode health status. The detergent solution interacts with the electrode in a way that amplifies or makes visible subtle deteriorations.
2Productivity
If electrode replacement is based on predetermined lifetime or usage count, then device operation is maintained, but time and resources are wasted on premature replacement
Solution Approach 1:
The patent implements feedback by continuously monitoring detergent potential and comparing it against reference values or trends. This feedback mechanism allows the system to adjust electrode replacement scheduling based on actual electrode condition rather than following a fixed calendar or usage schedule. When potential indicates deterioration, replacement is triggered; when stable, operation continues.
Solution Approach 2:
By performing detergent potential measurements during routine cleaning cycles, the system performs preliminary assessment of electrode condition without interrupting normal operations. This allows for scheduled maintenance that prevents sudden failures while avoiding unnecessary replacements, optimizing both productivity and resource utilization.
3Measurement precision
If frequent electrode replacement is performed, then measurement accuracy is maintained, but waste of time, labor, and materials increases
Solution Approach 1:
The detergent potential measurement provides continuous feedback on electrode condition, enabling data-driven decisions about replacement timing. By comparing measured potential against established criteria and monitoring trends over time, the system identifies the optimal replacement moment that maintains accuracy while avoiding premature replacement. This feedback loop prevents both under-maintenance and over-maintenance scenarios.
Solution Approach 2:
The patent changes the measurement parameter from traditional calibration liquid potential to detergent potential, which provides a different diagnostic perspective. This parameter change allows for earlier detection of electrode deterioration trends, enabling more precise timing of replacements that balance accuracy requirements with resource conservation.
Data Source
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AI summary
Provided are an electrolyte analysis device and a method for identifying an abnormality in the same that make it possible to detect an abnormality in an ion-selective electrode at an early stage. The electrolyte analysis device comprises an ion-selective electrode that generates a sample potential that is a potential corresponding to the ion concentration of a sample, a reference electrode that generates a reference potential that is a potential to serve as a reference, and a concentration calculation unit that calculates the ion concentration on the basis of the potential difference between the sample potential and the reference potential. The electrolyte analysis device is characterized by additionally comprising an abnormality determination unit for determining whether there is an abnormality on the basis of an evaluation value that has been calculated using a detergent potential that is a potential generated by the ion-selective electrode when a detergent was supplied.