Wheatstone Bridge Question

Discussion in 'Homework Help' started by Ivano, Mar 15, 2009.

  1. Ivano

    Thread Starter Member

    Feb 2, 2009
    10
    0
    HI...

    i'm not being able to understand where does this formula come from:

    legend
    Vo= OUTPUT or revelation voltage of the bridge
    E = supply voltage
    x= unknow resistance
    a, b, c = left resistors (a next to b ; c next to x )......

    ...it should come from the voltage divider but cannot see how...:(


    Vo= (Ex/x+c)-(Ea/a+b) = [(x/x+c)-(a/a+b)]E

    ..hope someone is gonna help me

    please
     
    Last edited: Mar 15, 2009
  2. hgmjr

    Moderator

    Jan 28, 2005
    9,030
    214
    Greetings Ivano,

    We request that you always start your own thread rather than tack your request for assistance onto an existing thread.

    For this reason, I have moved your request to its own thread so that it will receive the attention it deserves.

    hgmjr
     
  3. silvrstring

    Active Member

    Mar 27, 2008
    159
    0
  4. Ivano

    Thread Starter Member

    Feb 2, 2009
    10
    0
    Thank you both

    ..you're right hgmjr , i'm sorry..iìll try to pay more attenction next ;)

    silvrstring..i saw it was actually easy,..but i panic sometimes and i seem to fall in a black hole..

    THANK you guys Ivano
     
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