Teatcup Measuring Chamber Layout for Stable Milk Sensing
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Solution Overview
Problem
Existing milking systems face reliability issues with sensor device measurements due to unpredictable milk flow rates and air inclusion, which are exacerbated by the design of conventional teatcups and measuring chambers.
Innovation Solution
The milking system incorporates a non-circularly symmetric measuring chamber with a larger diameter in one direction, a smooth peripheral wall, and a sensor device positioned at the center of gravity, along with a vacuum outlet to reduce air inclusion and stabilize milk flow, enhancing measurement accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the volume of the measuring chamber is increased by increasing its height, then the measurement accuracy is improved, but the adaptability to animals with low udders deteriorates
Solution Approach 1:
The measuring chamber transitions from a vertically extended design to a horizontally extended design with elliptical cross-section. The larger first diameter in the first direction provides increased volume for stabilizing milk flow without increasing height, thereby maintaining compatibility with animals having low udders while still improving measurement accuracy.
Solution Approach 2:
The measuring chamber is designed with an elliptical cross-section having different diameters in perpendicular directions, rather than a circular cross-section. This asymmetric geometry allows the chamber to have larger volume in the horizontal direction (first diameter) without increasing height, resolving the contradiction between measurement accuracy and adaptability to low-udder animals.
2Measurement precision
If the radius of the measuring chamber is increased, then the measurement accuracy is improved, but the teatcups may push each other away in the case of close teats
Solution Approach 1:
The measuring chamber employs an elliptical cross-section with a larger first diameter in one direction and a smaller second diameter in the perpendicular direction. This asymmetric design allows the chamber to achieve sufficient volume for accurate measurements while maintaining a compact profile in the direction between adjacent teatcups, preventing them from pushing each other away.
Solution Approach 2:
Instead of uniformly increasing the radius in all directions, the design extends the measuring chamber primarily in the first direction (larger first diameter) while keeping the second diameter smaller. This directional volume expansion improves measurement accuracy without increasing the width between teatcups.
3Reliability
If the volume of the measuring chamber is increased, then the measurement reliability is improved, but the device complexity increases
Solution Approach 1:
The elliptical cross-section with different diameters in perpendicular directions provides an efficient volume increase without requiring additional components or complex internal structures. The asymmetric geometry naturally stabilizes milk flow and reduces air bubbles, improving measurement reliability while maintaining simple device 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 design stabilizes milk flow, reduces air bubbles, and improves measurement reliability by increasing the measuring chamber's volume without increasing height, allowing for more accurate determination of milk properties.
Implementation Method 1
a vacuum outlet, the teatcup and the measuring chamber in particular forming one rigid whole
Data Source
AI summary
A milking system for milking a milking animal includes a teatcup for fitting on a teat of the milking animal, and a measuring chamber connected directly and rigidly thereto. The teatcup has a longitudinal direction, and a first milk outflow orifice for milk outflow parallel to the longitudinal direction. The measuring chamber has a peripheral wall, a milk inlet in fluid communication therewith, a second milk outflow orifice to a milk tube, a vacuum outlet, and a sensor device for determining a property of the milk in the measuring chamber. In a plane perpendicular to the longitudinal direction, the measuring chamber has a first inside diameter in a first direction, and a smaller second diameter in a perpendicular second direction.