The flux densities
at slice number i can now be obtained
For a 90[degrees] helix pitch angle, we observe from Figure 4(b) that the patterns of flux densities
are very much similar to the case of 0[degrees] pitch (Figure 4(a)), except the fact that the magnitudes are slightly increased in this case, and the density characteristic exhibits more dissipating ripples.
The slot area in the stator can be maximized by optimizing tooth and yoke area so that the flux densities
in these areas are kept just under the saturating limit of the core.
There are a few UCHII candidates within each of the three regions with a wide range of 100 [micro]m flux densities
. Summing these up for each region, and assuming [S.sub.100 [micro]m]/[S.sub.2 cm] = 1000 gives 0.52,14.3, and 7.9 Jy for Perseus, S140 and S235, respectively.
According to the analyses of flux density, it can be calculated that the max flux densities
of three discrete filter inductors are 0.33 T, the max flux densities
of three middle limbs of integrated filter inductors with five limbs are 0.33 T and that of the other two limbs are zero, and the max flux densities
of middle limb of integrated filter inductors with three limbs are 0.17 T and that of the other two limbs are 0.33 T.
Also, the maximum and average airgap flux densities
obtained from the FEM and sizing analysis agree well.
The magnetic flux density was altered by varying the amount of the electric current from 0, 10, 12, 14 to 16 A, these values corresponding to the magnetic flux densities
of 0, 30, 37, 44, and 51 mT, respectively.
Three critical sections, which are shown in Figure 4 as numbers 3 through 5, were chosen and their corresponding flux densities
were compared to the saturation level of the material from which the section is made.
The minimum value of the stator core axial length also may be calculated from the flux densities
in the air gap [B.sub.g] and in the stator core Bsc and the geometric ratio [lambda] = R/[R.sub.o] as,
Further, flux densities
due to the E[H.sub.01] and E[H.sub.11] modes decrease with the increase in radial distance, whereas that due to the E[H.sub.21] mode exhibits a minor increase only.
In the case where the air gap is large relative to the pole-width, flux fringing is responsible for the high flux densities
found outside the area in-between the pole faces.