Conductivity Measurement for Milk Cavitation Detection
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Solution Overview
Problem
Existing milk intake arrangements face challenges in efficiently measuring the degree of filling, detecting cavitation, and determining the filling level, which can lead to reduced pumping power and potential milk damage due to cavitation and inaccurate flow measurements.
Innovation Solution
A measuring arrangement with vertically arranged electrodes in a conducting tube allows for conductivity measurements to determine the degree of filling, detect cavitation, and serve as a level sensor, enabling correction of flow measurements and regulation of pump performance to prevent cavitation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If pumping power is increased to maximize throughput, then productivity is improved, but cavitation occurs which damages the milk and reduces reliability
Solution Approach 1:
The patent employs conductivity sensors to continuously monitor the liquid in the pump inlet line and provide feedback on cavitation conditions. When cavitation is detected through conductivity changes, the system can adjust pump operation to prevent milk damage while maintaining optimal throughput.
Solution Approach 2:
The patent replaces traditional mechanical cavitation detection methods with electrical conductivity measurement. By using conductivity sensors instead of mechanical or acoustic detection systems, the invention achieves more reliable and continuous cavitation monitoring without adding complex mechanical components.
2Measurement precision
If multiple separate measurement devices are used for degree of filling, cavitation detection, and level sensing, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent designs a multi-functional measurement system where conductivity sensors serve multiple purposes: detecting degree of filling, identifying cavitation conditions, and determining liquid level. This eliminates the need for separate dedicated devices for each measurement function, reducing overall system complexity while maintaining measurement precision.
Solution Approach 2:
The patent combines multiple measurement functions into a single integrated system using conductivity-based sensing. By merging degree of filling detection, cavitation monitoring, and level sensing into one unified measurement approach, the invention reduces the number of components and simplifies the overall system architecture.
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
This solution provides a cost-effective and efficient method for milk intake by accurately measuring the degree of filling, detecting cavitation, and determining the filling level, ensuring maximum throughput without damaging the milk and simplifying the evaluation process.
Implementation Method 1
the occurrence of cavitation being detected by a change in conductivity between the two electrodes due to cavitation blossom
Implementation Method 2
two elongated electrodes which are at least partially opposite one another in the measuring tube are arranged
Implementation Method 3
This is used to create a vacuum to suck in the milk and then convey it to the collection tank with overpressure
Implementation Method 4
create a vacuum to suck in the milk and then convey it to the collection tank with overpressure
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
The invention relates to a measurement array for a liquid, comprising a measurement tube for conducting the liquid and two elongated electrodes that are arranged opposite of each other at least in some regions in the measurement tube. According to the invention, the electrodes run along the tube axis of the measuring tube and the tube axis of the measuring tube runs at least approximately perpendicularly in the region of the electrodes. The invention further relates to the use of the measuring arrangement in a milk collection array and to a method for operating a milk collection array comprising a measuring array.