Bridge Circ

Discussion in 'General Electronics Chat' started by RoyalDeviLz, Jul 3, 2014.

  1. RoyalDeviLz

    Thread Starter New Member

    Jun 24, 2014
    Hi guys, I'm a circuit newbie...I'm trying to design a sensor which varies in resistance, and determine its characteristic.

    So I wan to build a Signal Conditioning Circuit here, in order for my A/D converter to read the signal.

    I was wondering which kind of bridge I should use if my resistance value varies from 80k to 120k difference. Wheatstone or Wien bridge? any suggestion?

    Beside that, which type of amplifier configuration are best suit my conditioning circuit? I need some suggestion.. pls help guys, will be appreciated. =)
  2. GopherT

    AAC Fanatic!

    Nov 23, 2012
    Use Wheatstone if a simple DC
    WEIN BRIDGE is for capacitance sensing/measurement.
  3. MrChips


    Oct 2, 2009
    Put the resistance into an RC circuit and measure frequency or period.
    You can do this with a single I/O pin on a microcontroller.