Working Principle and Structure
Different matter has different but special absorbance wavelength point. Also, when at the fixed wavelength point, the absorbance has some relation to the substance’s (Always transparent Solution) concentration and its thickness. The relation can be concluded as the following Formula which is called Lambert-Beer Law.
T= I/Io
A=KCL= -log I/Io
A: Absorbance
C: Concentration of the Solution
K: Absorbance Coefficient of the Solution
L: The length of the Solution in the light path
I: The intensity of the light focused on the A/D after it permeate the solution to be measured.
Io: The intensity of the light focused on the A/D after it permeate the Solution.