FIELD: corrosion protection. SUBSTANCE: apparatus contains pulse generator with controlled off-duty factor 1, autovibration multivibrator 2, voltage amplifier 3, rectifier with smoothing filter 4, switch element 5, inductance coil 6, comparator 7, commutation diode 8, smoothing condenser 9, separating diodes 10, resistors 11, and protective electrodes 12: 1-2-3-4-11-12; 5-6-10-12; 6-7-5; 5-8; 6-9. EFFECT: improved structure. 1 dwg
Authors
Dates
1997-09-27—Published
1993-12-13—Filed