The, Everything inductor question.

Discussion in 'General Electronics Chat' started by EPhantom, Oct 12, 2009.

  1. EPhantom

    Thread Starter New Member

    Oct 12, 2009
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    So I'm new here, I am a sophomore in college that is a little obsessed with Electronics (brought here by a professor), and I have been wanting to do a ton of projects but am unable to due to lack of knowledge. I was wondering if someone could give me information (or the location of a place to obtain the information) about inductors. Not just how they alter a signal as it passes through it (as I noticed the other section of this site has) but also about the magnetic field that passes though/parallel to it.

    I have been wanting to create some devices that require solenoids and motors, but the ones that I would need would be on a MUCH larger scale than anyone would be willing to make. (IE I can't buy them) :(

    So I don't know anything about how thick wires would need to be, what frequencies would need to be sent through them, how long they can run, or anything like that.

    I was also hoping that I would be able to get some information about how magnetic fields interact with each other. I have asked some physics professors here and didn't get anything out of them. :(

    (currently in digital electronics and retaking calculus, though I have high school experience in electronics)

    Thank you in advance.
     
  2. SgtWookie

    Expert

    Jul 17, 2007
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  3. GetDeviceInfo

    Senior Member

    Jun 7, 2009
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    you would also need to describe what your end use might be. You can buy some pretty large motors/solenoids.
     
  4. EPhantom

    Thread Starter New Member

    Oct 12, 2009
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    One thing that I want to make is a large thrust fan... It's for a really weird project. It would need to be able to generate anywhere from 75 to 200 pounds of thrust...

    I also want to be able to make my own solenoids for a coil gun project that a friend and I want to make. We want to make it so a solenoid turns off as the projectile gets to the edge of a coil.

    Another is to create a levitation inductance melter that can very intensity and frequency.

    IE: starter projects so I can work on whatever I want later on and know what I'm doing.
     
  5. SgtWookie

    Expert

    Jul 17, 2007
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    Your first paragraph; there are commercially available motors in a very wide range of power inputs and outputs. Trying to "roll your own" would be far more expensive and time-consuming than picking up something that was available off-the-shelf. I suggest that you investigate surplus/salvage type companies; you might wind up with a real deal on a motor.

    Your 2nd paragraph:
    Please review the board policies, posted here:
    http://forum.allaboutcircuits.com/announcement.php?f=5&a=3
    We can't allow discussions on anything more hazardous than a solenoid-actuated doorbell or automatic golf ball return out of concerns for safety. Sorry, but if you want to pursue such discussion, you'll need to take it elsewhere.

    Levitation inductance melter - well, that's an interesting concept, but will take a heck of a lot of energy, most likely at radio frequencies. Not a topic for beginners.

    Like everything else, you have to start with the basics.
     
  6. notxjack

    New Member

    Sep 7, 2009
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    Sounds like you need 100cc's of Maxwell's Equations, STAT.

    Edit: For Linear Accelerators (railgun), I'd suggest making a 2 or 3 stage accelerator and just playing with it. Be careful about what you put through it, though. I built a 10 stage railgun in highschool that could put a nail through a brick.

    This is also the same concept used (combined with waveforms/waveguilds) in the production of particle accelerators!
     
  7. Thav

    Member

    Oct 13, 2009
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    This. If you really want to get into inductor work you should have a strong background in vector calculus and take an electromagnetics course. It's a hugely complicated field and at least for me required a lot of practice before I gained any intuition about it at all.
     
  8. EPhantom

    Thread Starter New Member

    Oct 12, 2009
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    I will have to read over the board policies later so that won't happen again, sorry.

    The problem with the thrust fan is that I want the motor to be outside of the blades, and I haven't seen one of these fans in existence yet.

    And I know the inductance levitator requires a lot of knowledge, and that's why I want to build it.

    If the board policies page doesn't supply me with enough info, I may just send messages to mods or the admin asking if a topic is acceptable, some projects that i want to work on I would consider safe, but others wouldn't.
     
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