Magnetic field strength

Discussion in 'General Electronics Chat' started by kubeek, Jun 19, 2012.

  1. kubeek

    Thread Starter AAC Fanatic!

    Sep 20, 2005
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    Hi, i´m having trouble with calculating magnetic field, namely conversion between A/m and Tesla.

    In the rfid standard it is said that the operating field should be between 1.5 and 7.5 A/m, however in the attached app note the calculations for the coil design on page 4 are done with Wb/m2, which is Tesla.

    Since this all happens in air with ur=1, can I assume that 1T=1A/m?
    If so, the equations are giving me unbelievable numbers..
     
  2. kubeek

    Thread Starter AAC Fanatic!

    Sep 20, 2005
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    Ah, difference between permeability and relative permeability got me again..
    1T=12.56*10^-7 A/m
     
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