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Stimulation of a tissue with Biphasic pulses
Posted 26 gen 2014, 17:51 GMT-5 Low-Frequency Electromagnetics 0 Replies
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I want to see the results of the stimulation of a tissue with biphasic current pulses in 2D.
AC/DC module, Electric Circuits (ec) and time dependent study are used.
There are 3 different geometries like stimulation electrode, tissue and return electrode with their own properties.
Biphasic current pulse is generated with Piecewise function, periodic and continuous within the limits to avoid discontinuity. 1kHz (period is 0.001 s, this is used as the range of time dependent study).
Biphasic current is applied to a width of the stimulation electrode as terminal current, pulse(t).
Ground is selected to width of the ground electrode.
Time dependent study uses the time limit which is range(0,2.0e-4,0.001).
Mesh is physics controlled and fine element size.
When this study1 is computed, there appears an error message unfortunately, like
Undefined value found in the damping matrix.
There are ... equations giving NaN/Inf in the matrix rows for the variable mod1.V
I'm stuck
Please give an idea in solving the model.
Hello Mahmut Celik
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