Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Magnetorquers and reaction wheels?

  1. May 12, 2012 #1
    What is the physics behind magnetorquers and reaction wheels which help in satellite attitude determination and control?
     
  2. jcsd
  3. May 13, 2012 #2

    Drakkith

    User Avatar
    Staff Emeritus
    Science Advisor

    When you accelerate a reaction wheel, the satellite moves in the opposite direction. (Newtons third law) Using a couple of these you can turn the satellite in any direction.

    For the magnetorquer, I can give the explanation from the wikipedia article: en.wikipedia.org/wiki/Magnetorquer

     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook