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What exactly is a wheatstone bridge? What are its uses?

  1. Jan 14, 2010 #1
    I would like to know what is a wheatstone bridge? I read that it is an arrangement of resistors but i am not understanding how it works and the whole concept.
    Any help would be appreciated.
    Thank You.
     
  2. jcsd
  3. Jan 14, 2010 #2

    Mech_Engineer

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  4. Jan 14, 2010 #3
    Its a clever use of resistors (or other elements) in a circuit to enhance accuracy of measurements. As the reference above explains
     
  5. Jan 14, 2010 #4

    Born2bwire

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    Not having looked at the wikipedia article, I don't know if they mention this or not but a good example are stress sensors. These sensors are flexible films with a wheatstone bridge imprinted on the film. Bending the film causes the resistances in the bridge to change, which are easily and accurately measured by the appropriate voltages.
     
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