Magnetostrictive Vortex Sensor for High-Pressure Flow Measurement
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Solution Overview
Problem
Conventional vortex flow meters face limitations in pressure resistance and durability under extreme conditions, such as high temperatures and pressures, leading to potential irreversible deformation or bursting, especially in applications like hot steam systems.
Innovation Solution
A measuring system incorporating a vortex sensor with a magnetostrictive material and a magnetic field detection unit, utilizing a magnetostrictive material to measure mechanical vibrations and a magnetic field change for accurate flow parameter measurement, with a magnetic field detection unit to monitor sensor functionality and ensure reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional deformation bodies with high diameter-to-thickness ratio are used to achieve high measurement sensitivity and mechanical natural frequency, then measurement precision is improved, but pressure resistance and durability under extreme conditions deteriorate
Solution Approach 1:
The patent applies composite materials by combining the deformation body with a magnetostrictive material layer. This composite structure allows the deformation body to maintain its high diameter-to-thickness ratio for measurement sensitivity while the magnetostrictive material provides enhanced pressure resistance and durability under extreme conditions, resolving the contradiction between measurement precision and pressure resistance.
Solution Approach 2:
The patent replaces the purely mechanical pressure resistance approach with a magnetostrictive mechanism. The magnetostrictive material converts mechanical stress into magnetic field changes, allowing the system to withstand extreme pressures without relying solely on the mechanical strength of the deformation body structure, thus maintaining both measurement precision and pressure resistance.
2Measurement precision
If the deformation body is made thinner to increase measurement sensitivity, then measurement precision is improved, but reliability under extreme temperature and pressure conditions deteriorates
Solution Approach 1:
The patent uses composite materials by integrating magnetostrictive material with the thin deformation body. This allows the deformation body to remain thin for high measurement sensitivity while the magnetostrictive material provides the necessary durability and reliability under extreme temperature and pressure conditions, preventing failure without compromising the thin structure needed for sensitivity.
Solution Approach 2:
The patent changes the physical parameters of the system by introducing magnetostrictive properties. This allows the thin deformation body to maintain its sensitivity while the magnetostrictive material's physical properties (such as Curie temperature and pressure resistance) provide reliability under extreme conditions, effectively decoupling the trade-off between thickness and reliability.
3Measurement precision
If conventional sensors are used in extreme conditions, then measurement function is maintained, but system reliability deteriorates due to irreversible deformation or bursting
Solution Approach 1:
The patent replaces the conventional mechanical sensing approach with a magnetostrictive mechanism. The magnetostrictive material converts mechanical stress into magnetic field changes, allowing the sensor to measure flow parameters accurately while the magnetostrictive material's inherent resistance to irreversible deformation and bursting ensures reliability under extreme conditions, eliminating the failure modes of conventional sensors.
Solution Approach 2:
The patent uses composite materials by combining the deformation body with magnetostrictive material. This composite structure maintains the measurement function while the magnetostrictive material provides enhanced reliability under extreme conditions, preventing irreversible deformation and bursting that would occur in conventional sensors, thus ensuring continuous reliable 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
Ensures reliable and accurate flow parameter measurement under extreme conditions by monitoring sensor functionality, allowing for continuous operation and maintenance scheduling based on plausibility assessments, suitable for safety-critical applications.
Implementation Method 1
a magnetostrictive material (11) and a magnetic field detection unit (10), wherein the magnetic field detection unit (10) is configured to measure a change in a magnetic field generated by the action of mechanical forces on the magnetostrictive material (11)
Data Source
Figure 1~2b
Figure 3~4
AI summary
The invention relates to a measuring system for measuring at least one flow parameter of a fluid measuring material flowing in a pipe line, said measuring system comprising: - a pipe (3); - a baffle body (4) which is arranged in the pipe (3) and is designed to generate a vortex in the measuring material flowing past the baffle body; - a vortex sensor (1) arranged downstream of the baffle body, said vortex sensor -- being designed to produce mechanical vibrations upon being excited by the flowing measuring material and to provide at least one vortex sensor signal (s1) and -- having a magnetostrictive material (11); - a magnetic field detection unit (10) which is designed to measure a change in a magnetic field as a result of mechanical forces acting on the magnetostrictive material (11) and which is designed to provide a magnetic field detection signal (m1); - and converter electronics (2) for analyzing the at least one vortex sensor signal and for analyzing a functionality and/or a statement about the plausibility regarding the vortex sensor signal provided by the vortex sensor (1) on the basis of the magnetic field detection signal (m1).