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Mathematical formulation of capacitance......
Posted Aug 3, 2012, 6:41 a.m. EDT MEMS & Nanotechnology, MEMS & Piezoelectric Devices Version 3.5a 1 Reply
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Hello,
Sir I made acapacitor sensor model in COMSOL, using following dimensions-
60e-6*60e-6*1.5e-6(first plate)
60e-6*60e-6*1.5e-6(second plate,acting as air)
60e-6*60e-6*1.5e-6(third plate)
Can anybody tell How to calculate capacitance of plates MATHEMATICALLY?????!!!
Please provide any information regarding this problem....
Sir I made acapacitor sensor model in COMSOL, using following dimensions-
60e-6*60e-6*1.5e-6(first plate)
60e-6*60e-6*1.5e-6(second plate,acting as air)
60e-6*60e-6*1.5e-6(third plate)
Can anybody tell How to calculate capacitance of plates MATHEMATICALLY?????!!!
Please provide any information regarding this problem....
1 Reply Last Post Aug 3, 2012, 7:12 a.m. EDT
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Posted:
1 decade ago
Hi
You can check on Wiki, or do a search on the FORUM, but if you ignore the side effects, the capacity is proportiaonal to the area, the inverse separation distance times the dielectric constant of you material (e_0*e_r) in [F/m] and a 1/4/pi for the geoemtrical normalisation.
It's also explained in most books ;)
--
Good luck
Ivar
You can check on Wiki, or do a search on the FORUM, but if you ignore the side effects, the capacity is proportiaonal to the area, the inverse separation distance times the dielectric constant of you material (e_0*e_r) in [F/m] and a 1/4/pi for the geoemtrical normalisation.
It's also explained in most books ;)
--
Good luck
Ivar