1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

I Experiment - Flux, Irradiance, wavelength from Temperature

  1. Jul 12, 2017 #1
    In my experimental setup I have a purpose built small aluminium tube that has a black layer on the inside to mimic a blackbody.

    The tube is heated so the inside emits as a blackbody. A seperate temperature sensor attached to the tube gives the temperature of the tube.

    I have a thermopile sensor inside the tube that reads temperature of the surface of the blackbody. I am confused how I can convert this data into quantities such as spectral radiance, radiance, wavelengths or flux.

    Using Wien Displacement Law I know I can get the peak wavelength emission of the blackbody from
    Peak wavelength = wien Displacement constant / temperature

    The temperature will be the value recorded by the thermopile sensor.

    I really don't understand how to extract anymore data from my temperature reading ... Radiometry is somewhat confusing! Please can someone assist
  2. jcsd
  3. Jul 17, 2017 #2
    Thanks for the thread! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post? The more details the better.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted