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A new modeling program is in the pipeline. It is based on
tssp software but this one is a full 3D solver so that coils
and electrodes don't have to share a cylindrical symmetry.
That means that components can be placed in any relative
position and orientation.
Also it is not limited to primary, secondary and tertiary coils
and regular TC arrangements of interconnects. You can model
the interactions between any number of coils and electrodes
and they can be wired together arbitrarily.
The approach taken is a little different to tssp. The new
program confines itself to calculating the distributed self
and mutual reactances of all the components and does not
proceed to solve the network to find the resonances and
volts/current distributions. Instead it outputs a spice
sub-circuit representing the distributed reactances and
resistances as a detailed LCR network. The user then wires
this sub-circuit into arbitrary circuit models and can use
all the functions of spice to simulate the system.
Example: a bipolar magnifier,
http://abelian.org/tssp/140902a.gif
conical primaries, vertical secondaries, horizontal tertiary
coils. Each electrode (eg toroid) and both ends of each coil
are brought out to 'pins' on the sub-circuit and you have to
specify the wiring yourself in the spice model.
I feel this approach will be more useful and general purpose,
and the program may have applications beyond TCs.
Domestic PCs have improved a lot since tssp was written (2003)
and we no longer have to be constrained by design compromises
which were appropriate back then. Memory size is the limit,
the above example is about the max complexity for 4G RAM.
Hopefully an open-source C/Linux version will be fit to offer
this winter. Trials are showing fair performance on most of
the test cases used by geotc but there remains a lot of work
to make the program presentable and documented.
--
Paul Nicholson
--
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