Enter the intensity of the sample, background, and reference into the calculator to determine the normalized intensity.

Normalized Intensity Calculator

Enter any 3 values to calculate the missing variable


Related Calculators

Normalized Intensity Formula

The following formula is used to calculate the normalized intensity for a given sample.

I_n = (I_s - I_b) / (I_r - I_b)

Variables:

  • I_n is the normalized intensity
  • I_s is the intensity of the sample
  • I_b is the intensity of the background
  • I_r is the intensity of the reference

To calculate the normalized intensity, subtract the intensity of the background from the intensity of the sample. Then, divide the result by the difference between the intensity of the reference and the intensity of the background.

What is Normalized Intensity?

Normalized intensity is a measure used to compare the intensity of a sample relative to a reference, taking into account the background intensity. This normalization process helps to remove the effects of background noise and allows for a more accurate comparison of sample intensities. Normalized intensity is commonly used in scientific experiments and data analysis to ensure that the results are not skewed by external factors.

How to Calculate Normalized Intensity?

The following steps outline how to calculate the Normalized Intensity.


  1. First, measure the intensity of the sample (I_s).
  2. Next, measure the intensity of the background (I_b).
  3. Then, measure the intensity of the reference (I_r).
  4. Finally, calculate the normalized intensity using the formula I_n = (I_s – I_b) / (I_r – I_b).
  5. After inserting the values and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

Intensity of Sample (I_s) = 150

Intensity of Background (I_b) = 50

Intensity of Reference (I_r) = 200