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capacitve sensor

Posted Jan 8, 2012, 5:02 a.m. EST Low-Frequency Electromagnetics, MEMS & Nanotechnology, MEMS & Piezoelectric Devices 4 Replies

Ayat Qudah
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Hello,
I am try to study the effect of capacitive sensor in biological tissue , firstly i have a problem to put AC current in the module to see magnetic effect of current in biological tissue, i want to asked it is possible to module biological tissue in comsol and seeing tis effect ,


Thanks so much
ayat
4 Replies Last Post Jan 10, 2012, 7:12 a.m. EST
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago Jan 8, 2012, 5:08 a.m. EST
Hi

so long you know the required physicsal properties of your domains there is no limtations on what can be modelled.
But the tricky thing might be to know reasonable values for your material, if something is missing, you need to do a good guess, i.e. by similarity with the main components

--
Good luck
Ivar
Hi so long you know the required physicsal properties of your domains there is no limtations on what can be modelled. But the tricky thing might be to know reasonable values for your material, if something is missing, you need to do a good guess, i.e. by similarity with the main components -- Good luck Ivar
Ayat Qudah
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Posted: 1 decade ago Jan 10, 2012, 3:23 a.m. EST
Thanks so mush but i don't have any idea how we can module AC voltage i am trying but i don't see any magnetic effect of it,
thanks for help
ayat
Thanks so mush but i don't have any idea how we can module AC voltage i am trying but i don't see any magnetic effect of it, thanks for help ayat
Edgar Kaiser
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Posted: 1 decade ago Jan 10, 2012, 4:52 a.m. EST
Hi,

if you want to see magnetic fields, you must have current. So you must assign electrical conductivity and/or permittivity to the tissue domain of interest.

Cheers
Edgar
Hi, if you want to see magnetic fields, you must have current. So you must assign electrical conductivity and/or permittivity to the tissue domain of interest. Cheers Edgar
Ayat Qudah
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Posted: 1 decade ago Jan 10, 2012, 7:12 a.m. EST
thanks for help
ayat
thanks for help ayat

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