FIELD: instrument making.
SUBSTANCE: invention is related to the field of measurement equipment. Device comprises controlled multiphase supply unit in circuit of electric power supply of investigated light source, unit of stepped motor control, diffraction grid of monochromator, photodetector, amplifier of photocurrent, analog-digital converter, control computer, detectors of currents and voltages in circuit of LS electric power supply, calibrated shunts and precision voltage dividers, converter of voltage in circuit of photocurrent, normalising amplifiers, commutator, unit of buffer amplifiers, which is connected to analog-digital converter, commutator, unit of stepped motor control and control computer.
EFFECT: possibility of complex control of spectral and electric parametres of light sources.
3 cl, 1 dwg
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