S.G. Gurzhin - Ph.D.(Eng.), Associate Professor, Department «Information-Measuring and Biomedical Engineering», Ryazan State Radio Engineering University, Winner of the Lenin Komsomol Prize in Science and Technology (1984.), Laureate of the Ryazan Region on Science and Technology and the Silver Medal Academician V.F. Utkin
S.V. Nikitin - Senior Lecturer, Department «Information-Measuring and Biomedical Engineering», Ryazan State Radio Engineering University, Laureate of the Silver Medal Academician V.F. Utkin

The article considers the problem of electromagnetic compatibility multichannel magnetotherapeutic apparatus (MTA) with diagnostic equipment . On diagnostic equipment affects the composition of electromagnetic interference from different channels MTA. The article considers the problem of minimizing the total level of interference. In each channel MTA has a PWM. To reduce the level of total interference from PWM made time shifts PWM sequences in different channels. Considered the various ways in time delays in different PWM channels to reduce interference. A method for estimation of time delay PWM sequences based minimize the total average power noise. The examples of calculation time delays PWM signals in different ways to reduce the noise level. The comparative analysis of the obtained results. Given by way of reduction of the noise level allows without schema changes and design, only by changing the time delays in PWM signals to improve electromagnetic compatibility multi-MTA and diagnostic devices.

 

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