Inhaltsverzeichnis
DADOS Calibration Lamp
☚ 🇬🇧 English | 🇩🇪 German
The DADOS calibration lamp is cost-effective and typically used for calibrating astronomical spectra (https://www.baader-planetarium.com/en/dados-neon-calibration-lamp.html). It emits visually noticeable orange spectral lines with known wavelengths. Once these lines are identified, a quite accurate calibration can be performed, as shown below.
The calibration lamp does not light up when exposed to external light. It has a twilight switch that only activates it in sufficient darkness. Therefore, a holder (3D-printed) was developed so that the lamp can be used with the spectrometer.
DADOS Spectrum with piSpectro
| piScectroscope Spectroscope and DADOS calibration lamp with holder |
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| A 3D-printed holder securely and precisely holds the DADOS calibration lamp on the spectroscope – this helps ensure quick and reliable calibration. |
| piScectroscope Spectroscope and DADOS calibration lamp with holder |
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| FreeCAD view of the holder. |
DADOS Reference Spectrum
Based on the published spectral lines from Baader Planetarium as well as precise neon spectral data from NIST, a compact reference database for the DADOS calibration lamp was created. This can be imported into your own spectra when needed to allow quick and reliable calibration.
The corresponding reference spectrum is shown in the image below. It serves as a visual guide and facilitates the identification of characteristic neon lines, which is especially helpful for the initial calibration.
DADOS piSpectro
| piSpectro calibration with DADOS |
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| Shown is the piSpectro calibration with the associated reference spectrum. For this, the DADOS reference spectrum was overlaid to facilitate the calibration. Then calibration was performed. A very good match between the theoretical line spectrum and the actually recorded spectrum can be seen. |
Additional Sources
Information from the Baader homepage
Calibration of an energy-saving lamp and a neon lamp as calibration light sources for the DADOS slit spectrograph
Thesis Kopernikus Gymnasium School Year 2008/2009
