Help naming a particular contact type

Discussion in 'General Electronics Chat' started by doby, Jun 13, 2015.

  1. doby

    Thread Starter Active Member

    Aug 17, 2011
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    I'm looking for the name of a contact type that would connect an x and y axis to a continuously revolving z axis. I'm guessing it would use offset wiper contacts on the z axis wiping along 2 circular contacts on x and y but I'm having no luck with googling.

    They must exist, surely?
     
  2. djsfantasi

    AAC Fanatic!

    Apr 11, 2010
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    834
    A wiper on a revolving z axis, will sweep out a plane, where any line on that plane which passes through it's origin (location where the z axis passes through the plane) is orthogonal to the z axis. This likely is the plane defined by the x & y axis.

    This is a long winded introduction to the question what do you mean by contacts on the x axis and y axis?
     
  3. MaxHeadRoom

    Expert

    Jul 18, 2013
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    What environment is this? servo? Motion control?
    Max.
     
  4. doby

    Thread Starter Active Member

    Aug 17, 2011
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    I'm having real difficulty finding the right terminology to describe it, either that or I'm having a mind block!

    I'll put it into a situation.. Imagine i want lights on the wheel of a car and it needs to be powered from the car battery, having a battery on the wheel itself isn't an option. I obviously cant use wires to connect between the axis and the wheel because the wheel needs to rotate more than 360 degrees. Therefore i need some sort of contact adapter(?) that will keep the lights connected whist the wheel is turning. (This isn't actually what i want to do but its the same premise).
     
    Last edited: Jun 13, 2015
  5. paulktreg

    Distinguished Member

    Jun 2, 2008
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    120
    Do a search on "slip ring". Is this the sort of thing you're after?
     
    doby likes this.
  6. #12

    Expert

    Nov 30, 2010
    16,298
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    The way I see it, you either need a slipping brush like what's inside an alternator, or an induced current made with two coils that are spaced very close to each other, like a toothbrush charger.
     
  7. doby

    Thread Starter Active Member

    Aug 17, 2011
    43
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    That's it, thank you!
     
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