MOSCOW BAUMANN STATE TECHNICAL UNIVERSITY
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AIM OF THE WORK

EQUIPMENT

   Spectrometer

   Optical behch design

   CCD-detector

   Microprocessor board

   Optical resolution

   Stray Light and Second Order Effects

   Fibre optic cable

   Light passing through fibre

   Fibre design

   Optical fibre types

   Collimating lens

   Objects of research

   AVALight lamp

   Halogen and deuterium lamps

SPECTROMETER CONTROL PARAMETERS

   Integration time

   Average

   Saturation detection levels

   Smoothing

   Correct for dynamic dark

EXPERIMENT

   Experiment scheme

   Àcquaintance with control interfaces

   Order of carrying out the work

   Stage 1

   Stage 2

   Stage 3

   Practical part
 
Correct for dynamic dark
Correct for Dynamic Dark
The pixels of the CCD detector are thermally sensitive, which causes a small dark current, even without light exposure. To get an approximation of this dark current, the signal of the first 14 optical black pixels of the CCD-detector can be taken and subtracted from the raw scope data. This will happen if the correct for dynamic dark option is enabled. As these 14 pixels have the same thermal behavior as the active pixels, the correction is dynamic.

ForgetPercentage
Percentage of the new dark value pixels that has to be used. E.G., a percentage of 100 means only new dark values are used. A percentage of 10 means that 10 percent of the new dark values is used and 90 percent of the old values is used for drift correction.