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Engineering Life
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Forum Thread Details
  • Replies 33 replies
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  • electro magnetic engineers
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Magnetic Radiation

lescolliershustoke@virginmedia.com
lescolliershustoke@virginmedia.com over 8 years ago

Hi

     a question :>

 

I have a solenoid and it has a certain range to it, i.e. the magnetic field does not go on fro ever for practical purposes.

 

I can adjust the design to gain more range, I can wind more turns on the armature but this won't extend the range if the core material saturates out. I can up the voltage and hence the current, but this creates more heat that I have to dissipate, and I want to power from a battery at the end of the day. So I am trying to get the longest range I can from 10 to 14 volts.

 

 

Does anyone have an answer on which parameter to try moving first assuming the range I have is not good enough.

 

regards

 

 

Les C

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Top Replies

  • michaelkellett
    michaelkellett over 8 years ago in reply to rachaelp +2
    Can you draw a diagram of what you are trying to do, or at least explain it better. Generally speaking magnetism is not a long range phenomenon (ie it's pretty weak once you are separated from the source…
  • jw0752
    jw0752 over 8 years ago in reply to lescolliershustoke@virginmedia.com +2
    Hi Les, The magnetic field lines, that are being generated by a specific amount of power (Amps times Volts), are part of a magnetic circuit that by convention comes out of the north pole and loops around…
  • D_Hersey
    D_Hersey over 8 years ago +2
    Frequently Used Equations – The Physics Hypertextbook Radiation – The Physics Hypertextbook
Parents
  • jw0752
    jw0752 over 8 years ago

    Hi Les,

     

    I got the impression from your question that you are using an open coil and that you are not talking about the travel of a plunger but rather the extent that the magnetic field extends radially from the coil. Is this so?

     

    John

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  • D_Hersey
    D_Hersey over 8 years ago in reply to jw0752

    Forever and ever?

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  • D_Hersey
    D_Hersey over 8 years ago in reply to jw0752

    Forever and ever?

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