METHOD AND DEVICE FOR ACTIVE CONTROL OF THE PROFILE OF IMPREGNATION DEPTH WITH ORGANOSILICON COMPOUNDS OF POROUS CERAMIC ARTICLES Russian patent published in 2019 - IPC G01N29/04 

FIELD: control systems.

SUBSTANCE: invention relates to optical methods of monitoring, and more specifically to photometric methods of controlling luminescence parameters of a colored impregnation boundary when tuning laser radiation to the frequency of quantum transition in the spectrum of the analyzed substance. Disclosed method for active control of a complex profile of the impregnation depth with organosilicon compounds of porous ceramic articles includes a shell from porous ceramics and an organosilicon oligomer in a viscous flow, which is diluted with acetone to obtain the required density and provides contact with the impregnated shell. Depth of impregnation is determined by recording time of impregnation. Fluorescent dye is additionally added to the oligomer dissolved in acetone, and the casing is irradiated by light beams from the laser from the outer side during the impregnation process and the luminescence value of the colored impregnation boundary is recorded. Disclosed device for realizing a method comprises a laser whose radiation wavelength is selected such that it coincides with the absorption spectrum of the colored oligomer, and the receiving channel has consecutive light filter, monochromator, photoelectric multiplier, controller, computer, monitor and printer. Radiation and reception channels are equipped with an optical fiber transporting laser radiation to the surface of the shell, and optical fiber transporting luminescence radiation to the input of the recorder.

EFFECT: method and device for active control of a complex profile of the impregnation depth with organosilicon compounds of articles made from porous ceramics, which take into account irregularities in the structure of the material, and the indicator physical quantity used is a parameter that is possible to convert to an electrical signal.

5 cl, 5 dwg