Modular Fluid Analyzer Interface for Replaceable Sensor Parts

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Solution Overview

Problem

Existing analyzers face challenges in easily replacing sensors to analyze different properties of fluids, as the sensors are not designed for quick interchangeability.

Innovation Solution

The analyzer features a secure connection between the analyser body and the sensor part, utilizing a combination of mechanical and fluid connections to ensure safe and controlled fluid transfer for measurement, with the connections comprising perimeter structures that form tight mechanical connections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If sensors are provided within the analyser body for protection, then sensor protection from external interferences is improved, but sensor replaceability deteriorates

Engineering Contradiction:
Improvesensor protectionVSAvoidsensor replaceability
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The analyser is divided into separate functional modules: a protected analyser body and replaceable sensor parts. The sensor part can be detached and replaced while the analyser body remains, allowing both protection during operation and easy replacement when needed.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The analyser body is designed with a universal connection interface that can accommodate different types of sensor parts. This allows the same analyser body to work with multiple sensor variants for different fluid properties, improving versatility without compromising protection.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If a secure mechanical connection is provided between analyser body and sensor part, then connection reliability is improved, but device complexity increases

Engineering Contradiction:
Improveconnection reliabilityVSAvoidconnection structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The connection system is segmented into distinct functional elements: perimeter structures for mechanical engagement, fluid connections for fluid transfer, and electrical connections for power and data. This modular segmentation allows each element to be optimized independently while maintaining overall simplicity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Multiple connection functions (mechanical securing, fluid transfer, electrical connection) are merged into a single integrated connection interface. This allows all connections to be established simultaneously through one docking action, reducing operational complexity despite the multi-functional nature of the connection.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP3811034B1Analyser, an analyser body and a sensor part
Publication Date: 2025.04.30 AEROMON OY
  • EP3811034B1 patent drawingFigure 1
  • EP3811034B1 patent drawingFigure 2
  • EP3811034B1 patent drawingFigure 3

AI summary

The invention relates to an analyser for analysing fluids, an analyser body and a sensor part The analyser comprises an analyser body (10), a sensor part (20) and a connection between the sensor part (20) and the analyser body (10). The connection comprises a fluid connection (2) and a mechanical connection (1) comprising a first connecting surface (11) having a first perimeter structure (12) and a second perimeter structure (13) within the first perimeter structure (12); and a second connecting surface (21) having a third perimeter structure (22) and a fourth perimeter structure (23) within the third perimeter structure (22). The first perimeter structure (12) forms a first mechanical connection (la) with the third perimeter structure (22) and the second perimeter structure (13) forms a second mechanical connection (lb) with the fourth perimeter structure (23). The fluid connection (2) is provided within the second mechanical connection (1b).