COMPACT SPECTROMETER SYSTEM INTENDED FOR NON-INVASIVE MEASUREMENT OF SPECTRA OF ABSORPTION AND TRANSMISSION OF SPECIMENS OF BIOLOGICAL MATERIAL Russian patent published in 2018 - IPC G01N21/31 G01J3/42 

FIELD: measuring equipment.

SUBSTANCE: invention relates to the field of optical measurements and refers to a compact spectrometer. Spectrometer contains an illuminating part, a receiving part, a hardware part consisting of a signal processing unit, a control unit and an algorithmic module. In this case, the lighting part comprises at least one LED source whose spectral emission curve, by means of at least two spectral filters with different spectral transmission curves, is divided into at least two spectral regions, forming an equivalent emission spectrum from at least two spectral sources. To restore the spectrum of the optically inhomogeneous medium under study, the algorithmic module applies methods for solving the inverse problem based on the use of a priori information on the spectral composition of the radiation of the illuminating part, the signal obtained as a response from an optically inhomogeneous medium, and the spectral sensitivity curve of the receiving part.

EFFECT: technical result consists in the simplification of the system, reduction of the size and power consumption, increase in the reliability and compactness of the device.

16 cl, 9 dwg