A SPECTROMETER SYSTEM AND A METHOD FOR COMPENSATING FOR TIME PERIODIC PERTURBATIONS OF AN INTERFEROGRAM GENERATED BY THE SPECTROMETER SYSTEM

A SPECTROMETER SYSTEM AND A METHOD FOR COMPENSATING FOR TIME PERIODIC PERTURBATIONS OF AN INTERFEROGRAM GENERATED BY THE SPECTROMETER SYSTEM

A spectrometer system comprises a scanning interferometer; a drive system mechanically coupled to a movable reflector element of the scanning interferometer and operable to effect reciprocation of the movable reflector element at a plurality, preferably more than two, for example three, different sc...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ANDERSEN, Mads Lykke, ANDERSEN, Steen Kjaer
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
COLORIMETRY
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT
MEASURING
PHYSICS
RADIATION PYROMETRY
TESTING
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Beschreibung
Zusammenfassung:A spectrometer system comprises a scanning interferometer; a drive system mechanically coupled to a movable reflector element of the scanning interferometer and operable to effect reciprocation of the movable reflector element at a plurality, preferably more than two, for example three, different scan speeds; a detector arrangement configured to sample at equidistant time intervals an interferogram formed by the scanning interferometer to generate a sampled interferogram; and a data processor is adapted to acquire a sampled interferogram at each of the plurality of different scan speeds and to perform a relative comparison of the content of the so acquired plurality of sampled interferograms.