AC Currents in the live tissue with two needle electrode - QuickField simulation example
This is an example simulation, used by Professor Bertill Persson in preparation of his publication QuickField modelling of electro-pulse-therapy.
How to find electric field between needle electrodes in tissue?
Answer Typical applications Geometry
Given
Task
Solution
Results
Engineering question
Use an AC-conduction model with equal electrode-voltage magnitudes and a 180° phase difference to calculate the electric-field distribution in the tissue.
needle electrode arrays, electropulse therapy electrodes, biomedical electrode systems
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Simulation problem
Problem Type
Plane-parallel problem of AC Conduction.
Electrical conductivity of the tissue is g = 0.35 S/m
Relative electrical permittivity of the tissue is ε = 9500
Frequency f = 60 kHz.
Potential difference ΔU = 200 V (peak).
Obtain the electric field distribution around the electrodes.
In QuickField we should specify magnitude and phase of voltage sources. We apply 100V ∠0° to the left electrode and 100V ∠180° to the right electrode.
Electric field strength RMS magnitude color map
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