ENGINEERING METROLOGY TOOLBOX  
 Refractive Index of Air Calculator 

Refractive Index of Air Calculator is a web-based tool for calculating the index of refraction of air and wavelength of light in air as a function of various input parameters, using the Ciddor Equation or a modified version of the Edlén Equation.

Long Description:  Equation A50


Description:

Title of Image:  Equation A50
Equation:  U(Ciddor) = 10^(-8) * {[0.003 * p / (t + 273)]^2 * [4 + 6 * 10^(-8) * (p - 10^5)^2 + 0.006 * (t - 20)^2] + p(v)^2 * [(8 * 10^(-4))^2 + (6 * 10^(-6) / Lambda^4)^2]}^(1/2)


Links:

Source:  Equation A50
Image:  Equation A50

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Date Created: Tuesday, March 3, 2020
Last Updated: Tuesday, March 3, 2020
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