Теоретическое обоснование возможности создания универсального низкочастотного генератора сигналов для электротерапии

Abstract

Известно, что разнообразие лечебных эффектов в электротерапии достигается за счет варьирования амплитудно-частотно-временных параметров электрического тока или электромагнитного поля. Формирование сигналов в электротерапевтических аппаратах осуществляется генераторами с различными времязадающими цепями. Старение элементов таких цепей и влияние на них внешней среды приводит к нестабильности параметров формируемого сигнала. В работе на теоретическом уровне показана возможность создания с помощью средств микропроцессорной техники универсального низкочастотного генератора сигналов для различных методов электротерапии.It is known that a multiplicity of therapeutic effects in electrotherapy is achieved by varying the amplitude-frequency-time parameters of the electric current or electromagnetic field. The formation of signals in electrotherapeutic apparatus is carried out by generators with different time-setting circuits. The aging of the elements of such chains and the influence of external environment on them leads to instability of the signal parameters that is formed. The aim of the work is to try to theoretically substantiate the possibility of creating a universal low-frequency signal generator with the help of microprocessor technology for various electrotherapy methods. At the same time, low-frequency electrotherapeutic signals are generated to produce a wide range of therapeutic effects by using various types of modulation of harmonic signals. The process of signal modulation for electrotherapy itself is regarded as a periodic transition of a signal from one stationary state that is characterized by a certain set of parameters to another stationary state with a change in the characteristic parameters of the signal according to a linear or nonlinear law. As an example, the order of formation of sinusoidal modulated signals, which has been used in amplipulse therapy in recent years, is shown. Practical implementation of the universal low-frequency generator of electrotherapeutic signals will allow to optimize parameters of influence for increasing the efficiency of therapeutic application of electromagnetic energy.