Half way there - strain gauge

Discussion in 'General Electronics Chat' started by aamirali, Mar 27, 2014.

  1. aamirali

    Thread Starter Member

    Feb 2, 2012
    With couple of threads before,

    1. Now I can calculate strain from voltage read by adc.

    This way with known voltage read I can calculate strain applied.

    1. Next stage: How to calculate load in kg from known strain.
  2. ericgibbs

    AAC Fanatic!

    Jan 29, 2010
    This question has been already been answered a number of times by members.

    Use calibrated weights and draw a plot of weight versus mV output.

    Why do you creating new threads for the same topic.?
  3. t06afre

    AAC Fanatic!

    May 11, 2009
    You must first construct some sort of load cell. Have you done that yet? Load cells are quite basic in theory. But still not something you build home at your workbench. Most often they use 2 or 4 strain gauges. You seams to be happy with using just one. Somehow it looks like you are hoping for somebody to come alone with a magic wand, and do some magic to create your load cell. And then this do not happen you create a new thread(sigh!).
  4. sirch2

    Well-Known Member

    Jan 21, 2013
    As I said in your other thread, strain is related to load by the modulus of elasticity of a material. Strain is essentially a change in size due to a load. You fasten your strain gauge to something, deform it and calculate the load by knowing how much it deforms.