Electrolyte Analyzer Insulated Suction Nozzle
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Solution Overview
Problem
The existing electrolyte analysis apparatus faces challenges in preventing electrical noise interference from conductor suction nozzles, which can affect measurement accuracy and increase contamination risks during reagent replacement, especially with high-concentration reference electrode solutions.
Innovation Solution
The apparatus incorporates an insulator to electrically isolate suction nozzles from the housing, ensuring that even conductor suction nozzles do not introduce electrical noise into the measurement flow path, and includes a reagent container setting unit with locking mechanisms to manage reagent replacement safely without power, preventing contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conductor suction nozzles are used to feed reagents, then reagent replacement operation is simplified, but electrical noise interferes with measurement accuracy
Solution Approach 1:
The suction nozzle is divided into two functional parts: a conductor portion for easy reagent replacement operation and an insulator portion for electrical noise isolation. This segmentation allows each part to fulfill its specific function without compromising the other.
Solution Approach 2:
An insulator portion is introduced as an intermediary between the conductor suction nozzle and the flow path. This intermediary blocks electrical noise transmission while maintaining the conductor's ease of operation benefits.
2Stability of the object's composition
If reference electrode solution with higher concentration is used, then analysis stability is improved, but contamination risk increases
Solution Approach 1:
The insulator portion acts as a physical barrier and intermediary that prevents direct contact between the conductor suction nozzle and the high-concentration reference electrode solution, thereby reducing contamination risk while maintaining analysis stability.
Solution Approach 2:
The insulator portion is designed as a disposable component that can be replaced with each reagent change, ensuring that any potential contamination is contained and does not affect subsequent measurements.
3Device complexity
If suction nozzles are electrically connected to housing, then structural simplicity is maintained, but electrical noise is introduced to flow path
Solution Approach 1:
The suction nozzle structure is segmented into conductor and insulator portions, adding minimal complexity while effectively blocking electrical noise transmission to the flow path.
Solution Approach 2:
Only the necessary portion of the suction nozzle (the part contacting the reagent) maintains conductor properties for ease of operation, while the portion near the flow path uses insulator material to prevent electrical noise, applying different material qualities locally.
Data Source
AI summary
An electrolyte analyzing device with which an electrical effect does not occur has a housing to which a reference potential is applied and a flow passage which is electrically insulated from the housing. The analyzing device delivers a sample solution to a first electrode, and delivers a reference electrode solution to a second electrode. A reagent vessel placement unit which is electrically connected to the housing, has placed thereon a diluent bottle accommodating a diluent, an internal standard solution bottle accommodating the internal standard solution, and a reference electrode solution bottle accommodating the reference electrode solution. The reagent vessel placement unit includes a suction nozzle comprising an electrical conductor which is joined to the flow passage, and which can be inserted into and removed from each of the diluent, internal standard solution and reference electrode solution bottles. And, an insulator electrically insulates the suction nozzle and the housing.