Test circuit/System for strain gauge

Discussion in 'General Electronics Chat' started by Richi Nixon, Dec 20, 2015.

  1. Richi Nixon

    Thread Starter New Member

    Dec 8, 2015
    17
    0
    Hello everyone,

    I need your help on building a test a circuit for strain sensor. Before I post technical specification, I would like to know what are the available techniques and circuit model to test strain sensor.
     
  2. Alec_t

    AAC Fanatic!

    Sep 17, 2013
    5,801
    1,105
    Googling 'strain sensor schematic' brings up loads of hits. Take your pick.
     
    Richi Nixon likes this.
  3. Dodgydave

    Distinguished Member

    Jun 22, 2012
    4,998
    745
    Usually a Wheatstone bridge circuit for them.
     
    Richi Nixon likes this.
  4. Richi Nixon

    Thread Starter New Member

    Dec 8, 2015
    17
    0
    Yes, thank you I started designing part with Wheatstone bridge..
    Hi,

    I have a general doubt, may be it looks silly but i am really confused with Test Circuit for Sensors (example Strain Sensor) and sensor measurement circuit. Do both are one and same??

    If yes, then my approach towards it will be having Bridge circuit+Amplifier circuit+Signal Conditioner(filter circuit).
    If not, then please suggest me a way(approach) to have test circuit for the sensor.
    Looking forward for your valuable input.
     
  5. Richi Nixon

    Thread Starter New Member

    Dec 8, 2015
    17
    0
    Hi,

    I have a general doubt, may be it looks silly but i am really confused with Test Circuit for Sensors (example Strain Sensor) and sensor measurement circuit. Do both are one and same??

    If yes, then my approach towards it will be having Bridge circuit+Amplifier circuit+Signal Conditioner(filter circuit).
    If not, then please suggest me a way(approach) to have test circuit for the sensor.
    Looking forward for your valuable input
     
  6. Alec_t

    AAC Fanatic!

    Sep 17, 2013
    5,801
    1,105
    They can be one and the same. If you apply a known force to the sensor, the measurement circuit output will tell you if the sensor is working or not (assuming the circuit itself is working properly as designed).
     
    Last edited: Dec 21, 2015
    Richi Nixon likes this.
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