Grating spectrometer system and method for the acquisition of measured values

摘要

The present invention relates to a grating spectrometer system both for polychromator spectrometer arrangements as well as.The grating spectrometer system according to the invention consists of a light source for illuminating the sample to be examined (6), a diffraction grating (1), imaging optical elements, a detector is arranged in the image plane and a control - and regulating unit (8). As a light source are individual light sources, preferably leds (7.1 to 7.3), a different spectral characteristics are used, whose spectral range over a plurality of diffraction orders in the image plane. - Of the control and regulating unit (8) only the leds are individually or in groups are switched on, which in any order of diffraction does not have the same location of the is arranged in the image plane individual - detectors (9.1, 9.2) illuminating.The proposed solution is suitable both for suitable for polychromator spectrometer arrangements as well, the field of application of the spectral sensitivity of the detector used is determined. By utilizing a plurality of diffraction orders, the resolution in the case of a constant detector size an enlarged and / or the detector surface at the same imaging quality can be reduced.