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Calculated resistance of a multi turn coil in frequency domain is too high
Posted 2013年12月4日 GMT-5 12:42 Low-Frequency Electromagnetics 3 Replies
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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
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3 Replies Last Post 2014年3月25日 GMT-4 01:00
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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
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Posted:
1 decade ago
i'm stuck in the same problem , how do you change the "circular" item?
kind regards,
Gianmarco
kind regards,
Gianmarco
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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