CONTROL UNIT TO MR-12 MONOCHROMATOR BASED ON RASPBERRY PI

摘要

FIELD: measuring equipment.;SUBSTANCE: invention relates to instrumentation, namely to electrical measuring instruments, and is intended for obtaining spectra of photoconductivity of semiconductor samples. It is used to control stepper motor MDR-12 monochromator in conjugation with Windows PC. Sets angle of rotation of diffraction grating of monochromator, its speed and wavelength of light on output slit of monochromator. Reads photocurrent readings at amplifier output. Control unit to monochromator MDR-12 based on Raspberry Pi, consisting of housing, control board, and measuring signal receiver, characterized by that it comprises external power source, and the control board of the monochromator step motor and the measuring signal receiver are made on the modern elemental base: on the basis of the Raspberry Pi single-board computer and the Gertboard expansion board respectively.;EFFECT: high accuracy and safety during operation, convenience of measurements and processing thereof by interfacing with PCs running Windows.;1 cl, 1 dwg