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Find light bulb surface temp from temperature measurements

  1. Nov 20, 2013 #1
    1. The problem statement, all variables and given/known data
    I have 3 data points of steady state temperature at 3 locations some distance away from a bulb, I need to calculate the temperature of the surface of the bulb. It would be best to assume the bulb is a hemispherical radiation source, based on the experiment set-up


    2. Relevant equations
    q''=σ(Ts-Tsurr)4
    I=E/∏
    G=I∏

    q=kAΔT

    3. The attempt at a solution
    I am assuming the temperature distribution is not linear so using a line to fit the data then backing out the temp would not give an accurate result.
     
  2. jcsd
  3. Nov 21, 2013 #2

    mfb

    User Avatar
    2016 Award

    Staff: Mentor

    I don't think that will work at all.
    If you can find a reasonable shape for the temperature distribution (based on a simulation or whatever), you can fit it - it is certainly not a straight line, but that does not matter for the fit.
     
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