Magnetic Core Measurements

#257 In this video I look at how a unknown magnetic core can be characterized. After going over the initial theoretical aspects, I proceed to test the inductance factor, initial permeability and complex permeability of a set of cores. While I already know what the cores values are supposed to be, its still important to observe how the measurement method will impact the values.

Related videos:
Magnetic Core Measurements: https://youtu.be/M2fjvlVvVBc
LTspice tutorial - simulating Magnetic Hysteresis: https://youtu.be/nBKC3eyqNyY
Measuring Magnetic Hysteresis: https://youtu.be/iO4bSZjfZoI
LTspice tutorial - Simulating inductors: https://youtu.be/65fNDRows90
LTspice tutorial - Modeling transformers: https://youtu.be/muUwe8X51oY

Useful links and further reading:
https://passive-components.eu/inductors-core-materials-and-their-losses/
https://www.tdk-electronics.tdk.com/download/540066/dbcde584d155cc270f5d5dbf1efec233/pdf-generaldefinitions.pdf
https://pa3a.nl/wp-content/uploads/2022/02/Measurements-With-The-NanoVNA-Part-4-Measuring-the-characteristics-of-unknown-toroids-and-identifying-them.pdf
https://coil32.net/ferrite-toroid-core.html
https://fair-rite.com/toroid-permeability-calculator/

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