magnetics

I want to create a chess board that detects where each piece is located. Existing technology from DGT uses small coils and capacitors, but this solution apparently does not work when metal is involved. My chess pieces have a small magnet at the bottom as they are going to be used on a...

Hi, I am currently working on the design of a Hall sensor circuit. In that I have to select a magnet. Application is similar to Proximity sensing. Magnets are characterized by the Remanent flux density. I understand as the distance from the magnet increases the flux decreases in the fashion of...

Hello Guys, I was reading the article about the What is Electronics in the link : What is Electronics written by Ralph Morrison. I was stuck at the following paragraph called Field Theory. after reading it two times, I am still confused and could not describe with Maxwell equation what really he...

Hello, This question might seem basic but I would like to state it. I would like to calculate the operating/Rise temperature of the ferrite core of an inductor. I am modelling my own bobbins for the core so I need to decide on the material/filament to use for 3D printing which can take the...

Hey, I have got two sets of E70/33/32 core of N87 material, one set with centered airgap of 8mm and another set is un-gapped core. I measured the inductance for N number of turns with centered gapped core and also I measured the inductance with 4mm airgap in the each leg (which gives effective...

I have recently started using software FEMM to see how the magnetic flux lines flow in the magnetic core and solenoid. Now I want to change the value of current in the solenoid to see how the flux lines changes in the core. But for that I needed to do some coding the the MATLAB, but I am not...