. The Bell System technical journal . ossible to reduce the eddycurrent losses and still preserve a reasonable wire diameter. A compositewire, by definition, will consist of a non-magnetic inner wire clad with amagnetic skin. It may be fabricated by a plating or an extruding process. The solid wire analysis of Section is a special case of composite 5 - O LUCO z - 2 1 4-79 PERMALLOY;! MIL UNANNEALED o 2 83 NL,17Fe, ;2MIL UNANNEALED | 3 nickel;3mil annealed ^ .X^ ^ / X ^ -^^ ^ 1 1 1 1 3 - 1 - 10 15 20 25 Haxial in OERSTEDS 30 35 40 Fig. 9 — Reciprocal of flux reversal time Ts as a funct
. The Bell System technical journal . ossible to reduce the eddycurrent losses and still preserve a reasonable wire diameter. A compositewire, by definition, will consist of a non-magnetic inner wire clad with amagnetic skin. It may be fabricated by a plating or an extruding process. The solid wire analysis of Section is a special case of composite 5 - O LUCO z - 2 1 4-79 PERMALLOY;! MIL UNANNEALED o 2 83 NL,17Fe, ;2MIL UNANNEALED | 3 nickel;3mil annealed ^ .X^ ^ / X ^ -^^ ^ 1 1 1 1 3 - 1 - 10 15 20 25 Haxial in OERSTEDS 30 35 40 Fig. 9 — Reciprocal of flux reversal time Ts as a function of applied axial drive,H, for solid and composite magnetic wires. Sufficient torsion applied to reachsaturation. THE TWISTOR 1331 wire analysis which is given in Appendix I. Only the results of the com-posite wire case will be given here. As indicated in Fig.* 10, pi and p2. AT, v(r)- V(0) (a) (b) Fig. 10 — (a) Composite wire is composed of non-magnetic core covered by amagnetic skin, (b) A voltage V{r) is induced in the wire during flux reversal. are the resistivities of the inner (non-magnetic) and outer (magnetic)materials. The inner material is contained within a radius ri . The over-all wire radius is Ti . Defining a = n/r-i, if Fobs is the voltage obser\edacross the ends of the composite wire twistor memory cell, and T^(0)is the induced voltage at ?• = 0 for a solid magnetic wire of radius r-z,T^obs = bV{0), and
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