08/21/06 12:16 AM

	Coil or Conductor Configuration (meters)		Self Inductance
			DC Value	High Frequency or Pulse Value
1	Single Conductor, circular and solid section r is the conductor radius and l is the conductor length
2	Single conductor, rectangular section		Table 3 is on page 23 of ref 1
3(a)	Return circuit of two tubular concentric conductors		Ref 1 page 41
3(b)	Return circuit of two tubular concentric conductors with thin conductors
4	Return circuit of eccentric cylindircal conductors
5	Parallel pair of round conductors
6	Parallel conductors over conducting earth		r is skin depth at frequency of operation.  For DC value see 5 above and Note (4)
7	Conductor near to conducting earth wich is not the return		For DC value see one above and Note 4.  For freq giving skin depth r use this equation.
8	Parallel pair of rectangular conductors
9	Parallel Pair of strip conductors(S>>B)
10	Transmission line (C<<B>>S
11	Circular turn with circular section (r is wire radius, R is major radius
12	Rectangular Turn with circular section		DC AC
13	Circular turn of thin sheet
14	Toroidal solenoid of N turns in single layer
15(a)	Long straight solenoid with single layer of N thin turns
15(b)	Short solenoid with single layer of Nthin turns for b>2/3r
16	Short solenoid of N rund turns in single layer	.	See ref 1
17(a)	Circular coil multi layer with rectanglular winding section	.	See ref 1
17(b)	Brooks Coil (gives maximum inductance for given length of wire) b=c 2a/c=3
18	Circular coil flat (pancake)
19	Thin conducting torus cut to produce Bz field

Notes:

1. Formulae based on non-magnetic conductors and space
2. References in table are listed below
3. Further information and arrangements are given in Ref. 6, p. 47-64
4. Proximity of metal to conductors affects HF inductance but not DC
5. DC inductance of bar due to its internal flux only 50 nH/m

References:

1. Gover, F.W. "Inductance Calculations, Working Formulas and Tables" Pub. Dover
2. Say, M.G. "Electrical Engineers reference Book", Pub. newnes.
3. Smart, D.L. "Calculation of Forces on Ioffe Bars for MTSE II", MTSEE II Engineering Memo No. 4 pp. 2-4.
4. Carter, G.W. "The Electromagnetic Field in its Engineergin Aspects". Pub. Longmans.
5. Smythe, W.R. "Static and Dymamic Electricity". Pub. McGraw-Hill.
6. Terman, F.E. "Radio Engineers Handbook". Pub. McGraw-Hill.
7. Dwight, H.B. "mathematical Tables". Pub. Dover.
8. Welsby, V.G. "Inductance Coils". Pub. Macdonald.