Having a closer look at the formulas for different loop shapes gives an
indication that there is a correlation between the inductance of a loop and
the ratio of perimeter^2/area.
If this is correct it would allow to get a formula for rectangular loops :
L = 0.4*(A+B)*(ln((A+B)/d)+7.6-0.35*(A+B)^2/(A*B))
where L = loop inductance in uH, A = loop height in m, B = loop length in m
and d = wire diameter in mm
The formula would be valid for loops where B/A does not exceed 6.
Does anyanoe have actualy measured the inductance of a big square loop ?
I would be interested to check the measured values against the calculated
ones.
73, Rik ON7YD
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