METHOD AND DEVICE FOR PRODUCING MAGNETOTHERAPEUTIC TREATMENT SIGNALS
FIELD: medicine; medical engineering. SUBSTANCE: method involves supplying electric signal as binary impulse sequence to inductor within preset time intervals Deltati, where i= is the current step number, m is the number of treatment steps within one time period T. Impulse succession frequency is eq...
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Zusammenfassung: | FIELD: medicine; medical engineering. SUBSTANCE: method involves supplying electric signal as binary impulse sequence to inductor within preset time intervals Deltati, where i= is the current step number, m is the number of treatment steps within one time period T. Impulse succession frequency is equal to fi = 1/ti, its duration is equal to taui = (p0+p1).ti, where ti - is the impulse succession period, p0 - is the number of intervals having logical zero level. The sequence is converted into electric signal having electric current level of p1 -, where is the binary impulse sequence impulse voltage amplitude, R is the inductor winding resistance. The impulse sequence is repeated during each interval Ui Deltati times. Beside that, two-leveled electric signal defining polarity is built. One of signal levels is associated with direct magnetic induction vector direction produced by field inductor and the other one with the reversed direction. Binary sequence creation in each time interval of Deltati/taui starts with supplying constant voltage of Deltati during time U0, where is the inductor time constant. Then, the proper binary impulse sequence supply begins with period tauc, where ti = (p0+p1).ht is time discretization interval, ht = 1/f0 is the reference frequency. The binary impulse sequence is delivered to the inductor within taui = Deltati-tausi time interval. Change of zero value to unit value and vice versa takes place at time moments being ht. multiples. The device has reference voltage bus connected to an inductor or inductor section via key, filter and magnetic induction vector switch unit connected in series. Data line is connected to information processing inputs of binary impulse sequence setter, magnetic induction vector polarity code memory unit and time interval durations code memory unit connected with its input to the device input and connected to time interval durations setter signal input which information processing inputs are connected to time interval durations code memory unit outputs. Time interval durations setter output is connected to address counter which outputs are connected to other information processing inputs of binary impulse sequence setter, time interval durations code memory unit and magnetic induction vector polarity code memory unit which output is connected to the other input of magnetic induction vector switch. The device also has anterior start signal front selection unit which input is connected to the device input |
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