FIELD: medicine. SUBSTANCE: solenoids 1 and 2 disposed onto non-ferrous base, are connected in series. Windings of the solenoids are connected in series parallel. Winding 14 of positive feedback of magnetic amplifier 15 is connected in parallel with windings of solenoids. Working windings of amplifier 15 are connected to primary circuit of welding transformer 24. Control windings 43 and 44 are connected to output of additional magnetic amplifier 45, control winding 46 is connected with output of additional power supply 47. When magnetic susceptibility of biologic object 6 or 7 changes current in positive feedback winding 14 changes as well, that results to improvement in gain of magnetic amplifier 15. Current at the output of rectifier 17 changes and current in windings of solenoids 1 and 2 is fixed at required level, which results to restoration of uniformity and value of magnetic field. Rectifier 17 is connected with output of welding transformer 24. EFFECT: improved effectiveness of influence. 3 dwg
Title | Year | Author | Number |
---|---|---|---|
SEMI-AUTOMATIC WELDING MACHINE | 0 |
|
SU1754362A1 |
WELDING DEVICE | 0 |
|
SU1123801A1 |
0 |
|
SU205970A1 | |
APPARATUS FOR WELDING | 0 |
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SU1229938A2 |
METHOD FOR CONTROLLING WELDING PROCESS AND APPARATUS FOR PERFORMING THE SAME | 2003 |
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DEVICE FOR ERASING RECORDS FROM MAGNETIC MEDIUM | 2002 |
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METHOD OF AND DEVICE FOR REGULATING FIELD CURRENT OF VEHICLE DIESEL-GENERATOR SET | 1993 |
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RU2065364C1 |
Authors
Dates
1994-02-15—Published
1991-06-26—Filed