Hello
I need to create a capacitive sensor with two sensing probes. How do i calculate the capacitance needed for my sensing???
Thanks
Calculating Capacitance
Oct 29, 2009
2 Replies
Either apply Maxwell's equations and the materials-specific response equations and do a 3-d solution of the electric field everywhere, squaring and integrating over all space to determine stored energy, or find someone who knows a dozen crufty approximations and can get it good enough. Or, build something that looks kinda right, and determine the capacitance by measurement.
I like the guesstimate, then measurement approach.
George H.
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