Discrete and Continuous Models and Applied Computational ScienceDiscrete and Continuous Models and Applied Computational Science2658-46702658-7149Peoples' Friendship University of Russia named after Patrice Lumumba (RUDN University)8484Investigations of an Optoelectronic Device for Angular Displacements Measurements with Use of a Deep Phasetype Reflective GratingKomotskiiV AКафедра радиофизики; Российский университет дружбы народов; Peoples' Friendship University of Russia-SokolovYu MКафедра радиофизики; Российский университет дружбы народов; Peoples' Friendship University of Russia-AlexeevA NКафедра радиофизики; Российский университет дружбы народов; Peoples' Friendship University of Russia-BasistyE VКафедра радиофизики; Российский университет дружбы народов; Peoples' Friendship University of Russia-Peoples' Friendship University of Russia1504200949510108092016Copyright © 2009,2009An optoelectronic device for measurements of small angular displacements based on a diffraction of a laser beam on a deep reflective phasetype grating was suggested and investigated. The grating's depth is about several wavelengths. The zero diffraction order's power dependency on the incident angle of a laser beam was investigated theoretically and experimentally. There were found conditions when linear conversion of angular vibrations into changes of power of zero order took place. The experimentally measured sensitivity of the device was rad with channel bandwidth of 800 Hz and signal-to-noise ratio 10.optoelectronic sensorsensor of displacementssmall angular displacementsphase diffraction gratingоптоэлектронный датчикдатчик перемещениймалые угловые перемещенияфазовая дифракционная решётка