FIELD: physics.
SUBSTANCE: invention relates to spectral measurements, and refers to dispersive spectrometer. Spectrometer includes wave dispersion element and two detectors. First detector is intended for detection of incident radiation energy scattered by dispersing element. Second detector is designed for recording intensity of undistracted incident radiation and is configured to generate signal describing registered radiation intensity. First detector is made with possibility of changing its operating parameters in form of accumulation time and/or sensitivity gain in response to value of signal generated by second detector.
EFFECT: technical result consists in improvement of accuracy and faster process of measurements.
9 cl, 1 dwg
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