This proposal relates to section manuals, more particularly, to devices designed to demonstrate the variation of the radiation source frequency as it moves, namely, cyan relativistic offset. The aim of this proposal is to automate the process of determining the relativistic blue shift. This object is achieved in that the device for demonstration of blue relativistic shift containing ultracentrifuge with a control panel on the rotor which is mounted a source - crystal isotope Co 57 optically coupled through a collimator with an absorber - isotope Fe 57 and the detector fastened fixedly in the central part ultracentrifuge , the signal from the detector is supplied to an analog-to-digital converter (ADC) and belongs to the signal processing unit provided with an indicator, the signal processing unit is supplemented meshes second memory eigenfrequency source ν 0, the comparator, and the microprocessor, while one input of the comparator is connected to the memory cell and the other - is connected to the ADC output, the comparator output and the memory cell connected to the input of the microprocessor, which calculates the relative value δν / ν 0, where δν - source frequency change under the effect of its rotation, determined by the comparator.
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