Multiple coil field math for magnetic train

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SUMMARY

This discussion focuses on calculating the inductance and field strength of multiple coils in a magnetic train system, specifically when one coil is deactivating while others beneath it are also turning off. The coils in question are flat, measuring 5 cm in length and 1000 cm in width, and operate in a magnetic environment exceeding 7 teslas. The primary concern is determining the change in inductance during this process, with an emphasis on the impact of varying permeability of the material within the magnetic field. Participants are seeking equations or resources to facilitate these calculations.

PREREQUISITES
  • Understanding of electromagnetic theory, particularly inductance and magnetic fields.
  • Familiarity with coil design parameters, including dimensions and material properties.
  • Knowledge of magnetic permeability and its effects on inductance.
  • Experience with mathematical modeling of electromagnetic systems.
NEXT STEPS
  • Research the formula for calculating inductance in flat coils, particularly under varying magnetic conditions.
  • Explore the effects of magnetic permeability changes on inductance calculations.
  • Investigate methods for accelerating the deactivation of electromagnetic coils.
  • Learn about the implications of high magnetic fields (above 7 teslas) on coil performance and inductance.
USEFUL FOR

Electrical engineers, physicists, and researchers involved in magnetic train technology or electromagnetic systems design will benefit from this discussion.

pixelpuffin
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i need to know how to calculate the inductance and field strength of a coil while another coil directly beneath it is turning off and coils under that are also turning off
i also need to know how quickly the coils will turn off and if i can accelerate the process
if it makes a difference the coils are very flat (5 cm long and 1000 cm across)
links are quite appreciated too

i almost forgot the permeability of the material within the magnet will be changing and the magnets will be past 7 teslas which likely complicates things
 
Last edited:
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what i need the most here is the inductance change so if anybody knows that i would like an equation or a link to an equation
 

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