Optimised “Helmholtz” coil for generation of uniform field proposed by Thabuis et al.: (a/c) 3D cut view of the reference Helmholtz coil and the optimised shape, (b/d) magnetic flux density B distribution in upper half of the 2-D revolved domain for the ordinary Helmholtz coils and the optimised shape, respectively.
The image was kindly provided by Adrien Thabuis, after publication as: A. Thabuis, X. Ren, T. Duong, Y. Perriard, Exploring Beyond the Helmholtz Coils for Uniform Magnetic Field Generation With Topology Optimization, IEEE Transactions on Magnetics, Vol. 58 (9), 2022, 7001404, https://doi.org/10.1109/TMAG.2022.3183362
thabuis_beyond_helmholtz_coil_ieee_2022.png
You are permitted to use this image freely, for any legal purpose including commercial (the permission is given, so there is no need to ask for it explicitly again), but you must always include the following credits:
A. Thabuis, X. Ren, T. Duong, Y. Perriard, CC-BY-SA-4.0