Magnetic Pump Delivery Element Oscillation for Fluid Viscosity
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Solution Overview
Problem
Existing methods for measuring fluid-mechanical characteristics of fluids, such as viscosity and density, are often cumbersome and require special equipment or sample removal, which is not suitable for continuous monitoring, especially in medical applications where fluid properties change dynamically.
Innovation Solution
A device using a magnetically mounted fluid pump with an excitation device for oscillating the delivery element and a sensor system to measure oscillation behavior, allowing for accurate measurement of fluid parameters without disrupting the fluid flow or requiring additional elements in the flow path.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional viscometers or measurement devices are used, then measurement precision is improved, but device complexity and ease of operation deteriorate due to requiring special equipment, sample removal, or complicated setup
Solution Approach 1:
The invention merges the fluid delivery function and measurement function into a single integrated pump system. The delivery element serves both to pump the fluid and to act as the measurement object whose oscillation behavior reveals fluid properties. This eliminates the need for separate measurement devices, sample removal, or additional flow path elements, thereby reducing device complexity while maintaining measurement precision.
Solution Approach 2:
The delivery element is designed with multi-functionality: it simultaneously performs fluid delivery and serves as the oscillating measurement element. The magnet bearing provides both support for the delivery element and a means to excite and detect its oscillation. This universal design allows the same component to fulfill multiple roles, simplifying the overall system while enabling accurate fluid characterization.
2Reliability
If continuous monitoring of fluid properties is required, then reliability is improved, but ease of operation deteriorates due to need for interrupting flow or complex sampling procedures
Solution Approach 1:
The invention enables continuous monitoring of fluid properties without interrupting the fluid flow. The delivery element continuously pumps fluid while simultaneously undergoing oscillation excitation and detection. The measurement process is integrated into the continuous operation, allowing real-time monitoring of fluid-mechanical characteristics as the fluid is being delivered, thereby maintaining both reliability and ease of operation.
3Measurement precision
If special measurement elements are added to the flow path, then measurement precision is improved, but device complexity and ease of operation worsen due to additional components and complicated setup
Solution Approach 1:
The invention eliminates the need for separate measurement elements in the flow path by merging the measurement function into the delivery element itself. The delivery element's oscillation behavior directly provides information about fluid properties, removing the need for additional sensors, probes, or measurement components that would complicate setup and operation.
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
Enables reliable and efficient measurement of fluid-mechanical characteristics, including density and viscosity, using a standard fluid pump, allowing for continuous monitoring without interfering with the fluid delivery process, particularly beneficial for biologically effective fluids.
Implementation Method 1
a fluid pump, with a delivery element which is mounted in a magnet bearing
Implementation Method 2
an excitation device for oscillation excitation of the delivery element against a counter-force produced by the magnet bearing
Implementation Method 3
a sensor device for measuring the oscillation behaviour of the delivery element
Data Source
AI summary
A method and a device for the measurement of one or more fluid-mechanically effective parameters of a fluid, with a fluid pump which comprises a delivery element which is mounted in a magnet bearing, and the delivery element of the fluid pump is excited into an oscillation by way of an excitation device, wherein the oscillation parameters as well as, as the case may be, the oscillation behaviour is measured, and parameters of the fluid are determined from this.