Electrode Array Fluid Rheology Measurement
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Solution Overview
Problem
Existing tomography apparatuses for measuring material flow in pipes and vessels provide limited detailed information about material distribution, especially near the walls and along the length of the body, due to the ring electrode configuration which mainly offers insights into the central region and specific planes.
Innovation Solution
A measurement apparatus with a plurality of electrodes, including first and second electrodes with different spacings, allowing for deeper penetration and higher resolution measurements, and a controller to generate data indicative of material properties at varying distances from the electrodes, enabling detailed information about material distribution throughout the body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a ring of electrodes is provided around the periphery of a body, then information about material in the plane of the ring can be obtained, but detailed information about material distribution throughout the body and particularly in regions proximate to the body walls is not available
Solution Approach 1:
The patent transitions from a single-plane ring electrode configuration to a multi-dimensional array of electrodes distributed throughout the body. This allows measurement of material properties in three dimensions (x, y, z coordinates) rather than just in a single plane, enabling comprehensive mapping of material distribution including regions near body walls.
Solution Approach 2:
The electrode system is segmented into multiple discrete electrodes arranged in arrays at different positions and orientations. This segmentation allows independent measurement at multiple locations simultaneously, providing detailed spatial information about material distribution that a single ring configuration cannot achieve.
2Length of stationary object
If electrodes are spaced apart to measure deep into the material, then penetration depth is improved, but measurement resolution near the surface decreases
Solution Approach 1:
The patent implements local quality by having different electrode spacing configurations in different regions. Some electrodes are spaced closely together to provide high-resolution surface measurements, while other electrodes are spaced farther apart to enable deep penetration measurements. This allows both surface detail and deep material characterization to be achieved simultaneously.
Solution Approach 2:
By distributing electrodes in three-dimensional space rather than a single plane, the system can simultaneously perform measurements at different depths and lateral positions. This multi-dimensional arrangement resolves the trade-off between penetration depth and surface resolution by making both capabilities available in different spatial dimensions.
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
The apparatus provides more accurate and reliable data on material distribution, including velocity and rheology, by allowing measurements deep into the material and with higher resolution near the surface, improving understanding of flow patterns and mixing processes.
Implementation Method 1
an energisation source arranged to energise at least one of said first electrodes so as to cause an electric field to be established between at least one pair of said first electrodes
Data Source
AI summary
A measurement apparatus comprising: a plurality of first electrodes, each of the first electrodes being spaced apart by at least a first predetermined spacing; a plurality of second electrodes, each of the second electrodes being spaced apart by at least a second predetermined spacing less than the first predetermined spacing; an energisation source arranged to energise at least one of said first electrodes so as to cause an electric field to be established between at least one pair of said first electrodes, and to energise at least one of said second electrodes so as to cause an electric field to be established between at least one pair of said second electrodes; a monitor arranged to monitor an electrical parameter at at least one of said first electrodes in response to said energisation of at least one of said first electrodes and to monitor an electrical parameter at at least one of said second electrodes in response to said energisation of at least one of said second electrodes; and a controller arranged to generate data indicative of a property of a material within a first region extending a first distance from the first electrodes, and to generate data indicative of a property of a material within a second region extending a second distance, less than the first distance, from the second electrodes, based upon said monitored electrical parameters.