a question about magnets ...

I have this electromechanical device that i would like to control with a VOICE COIL motor the device uses two magnets repelling each other .So what is the resulting field of the 2 magnets ..is it the sum of the 2 fields combined ,no mater what is the orintations of the poles ? N - N ,S- S, N-S ?

if you have a two fixed flux level magnets
the repellent force depends what poles you apply and also relative flux additons

if you have electromagnets you can induce a force + and - poles
across a coil and also modulate it with AM signals
via a transformer and an audio amplifier
so making mouths,eyes move etc

reversing the fields as needed +- - + to the two wires of a fixed coils set

etc..

there is many ways

the stronger the flux {voltage feed as current used as inductances} the more the attractions/repulsions etc jittering etc...
some model makers experiment with magnets from hard disk drives chipped up
to pieces and a small coil to open nodes on them
to upper fixed magnets making a pallet of sorts
controlled via multichannel pulse width modulation to vary the fileds
per audio band {audio graphics}

many small units equals many directions of movement

don't think north and south think

+ and - dipoles

and in maths

~+ +- = 0
~- -+ = 0

after all inter-contentious magnetic flexural unity
is a perfect contentious equation

the device i'm thinking is gravitating in the air because it has a magnet being repelled by another stationary .Now this stationary magnet has a coil around it .Which i hope to use to control the position of the one that is gravitating ....
But i would like to know what is the field H between the 2 magnets ? This RESULTING field is the one that i hope to increase or supress with the help of the coil.
Another question is Can be this device considered like a magnetic spring ..And is in the analogy some equivalent of SPRING constant and how about a thd coil assumed to be some magnetic damping device ?

can i ssume that the flux density between 2 magnets is not constant every where?

one question what happens to the magnets flux when same pole identical magnets are brought together by external intervention ...Do the flux lines diminish to almost nothing ?
any one coud help ?