Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.
Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.
Mathematical formulation of capacitance......
Posted 3 ago 2012, 06:41 GMT-4 MEMS & Nanotechnology, MEMS & Piezoelectric Devices Version 3.5a 1 Reply
Please login with a confirmed email address before reporting spam
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 3 ago 2012, 07:12 GMT-4
Please login with a confirmed email address before reporting spam
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