Table of Contents
Advertisement
Spectrometer
User Manual
Figure 12.1. Uncorrected dark spectra for integration times of (1) 50 µs, (2) 500 ms and (3) 5 s.
A periodic signal becomes visible for long integration times. This is not noise as such but is caused
by different sensitivities of the pixels. It can therefore be removed by subtracting a background
signal. Figure 12.2 shows an uncorrected and background corrected dark signal at 5 s integration
time.
Figure 12.2. Uncorrected (1) and background corrected (2) dark spectra taken with a 5 s integration.
www.ossila.com
31
Ossila Limited © 2023
Advertisement
Table of Contents
