I would like to generate the activation map of a Reed switch, similar to the following:
Using a magnetic finite element modeling software such as FEMM.
Assuming the Reed switch closes for X Ampere-Turn, what quantity do I have to measure in the software to determine whether the position and orientation of the magnet considered make the switch close?
I can calculate plots of the H field, linear integrals along arbitrary contours, integrals over arbitrary areas... But I don't really know which one to consider, especially considering that the field varies inside the Reed switch between the strips.
Edit: I understand these types of XY closure graphs, I would like to generate one using FEMM. For this I need to know what to measure in the software (and where/how) that I could convert to Ampere Turn to know whether the switch should be closed or not.