METHOD OF MEASURING IN SITU THE SPECTRUM OF EXTINCTION OF A TRANSPARENT SAMPLE IN A PHOTOCHEMICAL PROCESS Russian patent published in 2020 - IPC G01J3/42 G01N21/33 

FIELD: measuring equipment.

SUBSTANCE: invention relates to the field of measurement equipment and to the method of measuring in situ the spectrum of extinction of a transparent sample in a photochemical process. Method includes irradiation with optical radiation of a transparent sample in an operating position in an experimental apparatus, subsequent reception of radiation passing through the sample and measurement of the spectrum of extinction of the transparent sample using a spectrometer, as well as visualization and preservation of measured spectra for subsequent analysis using a computer. Transparent sample is exposed to broadband optical radiation by simultaneous use of a white LED and an ultraviolet (UV) LED, the light power of which is reduced by a neutral light filter to a value commensurate with the power of the white light emitting.

EFFECT: technical result consists in expansion of spectral range and improvement of reliability of measurements, longer service life of installation for method implementation.

4 cl, 5 dwg