Liquid level resistive sensor - QuickField simulation example
This simulation example of a resistive liquid level sensor is prepared by Dieter Stotz as a part of the webinar Level measurement on liquids, part 1.
How to find liquid level measurement with resistive probe?
Engineering answer Typical applications Geometry
Given
Task
Solution
Results
Current density distribution in the liquid.
Engineering question
Set up an axisymmetric QuickField DC Conduction problem for a resistive liquid level probe and evaluate liquid level measurement response from computed field results.
resistive level sensors, conductive probes, industrial level measurement devices
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Simulation problem
Problem Type
Axisymmetric problem of DC conduction.
Electrical conductivity of liquid 0.1 S/m.
Electrode potential difference ΔU = 2 V.
Determine vessel potential as a function of the liquid level.
The geometry model features rotational symmetry and can be simulated as a 2D axisymmetric problem. In axisymmetric problems the axis of rotation is a horizontal one.
A series of problems with different liquid levels is generated by LabelMover.
Vessel potential is a nonlinear function of the liquid level.
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