S.G. Gurzhin, S.V. Nikitin

The article considers the electromagnetic compatibility (EMC) magnetotherapy apparatus (MTA) with diagnostic equipment. The problem of EMC occurs, for example, during the rapid diagnosis of the patient (registration rheogram, cardiogram, etc.) during magnetotherapeutic session. We discussed the different ways of distribution of inductive and conductive interference from various units of the MTA. Attention is drawn to the two distinctive features of the MTA and worsening the EMC. 1st feature. Acting on the patient's pulse magnetic field, the MTA also applies on sensors, diagnostic equipment, preventing the obtaining reliable data. There is a contradiction between the need for the impact on the patient EMF and an almost complete absence of the field sensors. As, without decrease the therapeutic effect reduce this contradiction? It is proposed to correct the shape of the acting impulse magnetic field in such a manner to reduce the high frequency tails in the its spectrum, «misleading» diagnostic equipment. The article provides examples of how to optimize the pulse shape, to ensure minimization of the high-frequency part of the spectrum. Moreover, the optimization performed by several criteria, providing a different result, has its advantages. 2nd feature. The MTA is a multichannel system, forming a particular program in independent channels for current inductors. The imposing peaks of electromagnetic interference different channels on each other, this may deteriorate EMC MTA. The article considers the way in which diversity interference peaks at maximum intervals. The use of standard circuit-constructive methods of struggle with interference with the subject discussed above features can significantly improve the EMC MTA.