Using core/barrel to reduce leakage flux

Discussion/suggestions of research/experimental topics in armature development
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Dymitr Nawrocki
Posts: 3
Joined: Wed Nov 23, 2022 9:20 pm

Using core/barrel to reduce leakage flux

Post by Dymitr Nawrocki »

In case of transformers, shell type cores(in the picture the one on top) generally can be used with higher power because they have less leakage flux than core type transformers, i was wondering if using core in coilgun could reduce leakage flux and possibly increase magnetic saturation of the armature. I know that electromagnets with core make huge difference compared to just only coil, might be a good idea to try to use core to focus magnetic field where it's needed.
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Coilgun with core
Coilgun with core
Coilgun with core.jpg (93.89 KiB) Viewed 288 times
Example by comparing transformer types
Example by comparing transformer types
Example with transformer.jpg (135.07 KiB) Viewed 288 times
arcflash_admin
Site Admin
Posts: 18
Joined: Mon Aug 08, 2022 8:53 pm

Re: Using core/barrel to reduce leakage flux

Post by arcflash_admin »

Yes, using an external iron/ferrite shell would reduce flux leakage but it is impractical from a manufacturing standpoint.