We develop a series expansion for the calculation of the magnetic field near the center of Helmholtz coils and apply the result to a magnet of our design. Our analysis considers geometric details of the coils, the magnetic properties of the form and windings, conductor insulation effects, and several winding imperfections. We also consider the relaxation of coil symmetry which happens when the mean radius of each coil and the coil midplane separation distance are unequal. We compute the field uniformity near the coil's center for three cases, including one where axial symmetry remains but geometric imperfections of the order of 10(-3) of the coil "radius" exist.
Articles you may be interested inFrequency and intensity analysis of the ν3, ν4, and ν6 bands of formaldehyde J. Chem. Phys. 91, 646 (1989); 10.1063/1.457170Simultaneous analysis of the ν2, ν3, ν5, and ν6 infrared bands of CD3F Experimental data of moderately high resolution for the "pseudoparallel" bands V6 of DCF 3 and V 3 +V 6 of RCF 3 are reported. Analysis of V6 is straightforward and results in values of Vo. af and the conclusion that q 6 > O. V3 + V6 is perturbed by Fermi resonance with V 5 • Analysis in this case yields values of vo. af.6' the anharmonic potential constant Ik 3561 and the conclusion q 6> O. The effect of this Fermi resonance on the J = 1~0 pure rotational spectrum of ReF 3 is discussed.
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