It delivers the various light sources used to calibrate the spectrum:
- Thorium-Argon lamp with high-voltage power supply
- A tungsten lamp for blaze treatment
- A “LED” lamp for identifying orders during spectrum processing
The calibration module can be controlled directly from the acquisition software (Demetra, or even Audela) via an RS 232 interface. It also remotely controls the FIGU mirror for source selection (calibration or telescope flux).
Spectrum of the Thorium-Argon lamp in the calibration module (click on image to enlarge)