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.
Calculated resistance of a multi turn coil in frequency domain is too high
Posted Dec 4, 2013, 12:42 p.m. EST Low-Frequency Electromagnetics 3 Replies
Please login with a confirmed email address before reporting spam
Dear all,
I hope anybody in this forum had the same experience with the multi turn coil domain.
In my model i have a simple multi-turn-coil domain. My problem is that the resistance calculated in frequency domain is too high(Order of Mega Ohms). This happens when the coil is placed in an air box and is simulated. But if i remove the air box and simulate the coil , then the resistance of the coil is around 25 ohms.
If anyone would help, kindly reply.
Regards,
Mahesh Raja
I hope anybody in this forum had the same experience with the multi turn coil domain.
In my model i have a simple multi-turn-coil domain. My problem is that the resistance calculated in frequency domain is too high(Order of Mega Ohms). This happens when the coil is placed in an air box and is simulated. But if i remove the air box and simulate the coil , then the resistance of the coil is around 25 ohms.
If anyone would help, kindly reply.
Regards,
Mahesh Raja
Attachments:
3 Replies Last Post Mar 25, 2014, 1:00 a.m. EDT
Please login with a confirmed email address before reporting spam
Posted:
1 decade ago
Hi Mahesh,
your coil definition is for "circular" but the geometry is not a circle. Yes, it must
be a circle in the exact mathematical sense. You should use numeric.
I am not sure that this explains all. Note tha the coil resistance mf.mtcd1.R is 25 Ohms.
Regards.
Jens
your coil definition is for "circular" but the geometry is not a circle. Yes, it must
be a circle in the exact mathematical sense. You should use numeric.
I am not sure that this explains all. Note tha the coil resistance mf.mtcd1.R is 25 Ohms.
Regards.
Jens
Please login with a confirmed email address before reporting spam
Posted:
1 decade ago
i'm stuck in the same problem , how do you change the "circular" item?
kind regards,
Gianmarco
kind regards,
Gianmarco
Please login with a confirmed email address before reporting spam
Posted:
1 decade ago
In Multi turn Coil Domain there is an option called as "Coil Type" where u can change it to circular. But doing this u need to also set a reference edge for circular coil. Kindly note if the coil is circular then the reference edge provided must lie at the center of the coil . If the edge is on the ID of coil then an under estimated value of impedance & surface current density would be obtained and vice versa.
Regards,
Mahesh
Regards,
Mahesh