DEVICE FOR AUTOMATIC CHECK OF FILLING THE RESERVOIRS WITH CONDUCTING MEDIUM Russian patent published in 1996 - IPC

FIELD: automatic control systems. SUBSTANCE: device has transformer with two secondary windings 2 and 3, rectifier diode 4, control current source made in form of capacitor 5, guard electrode 6, limit resistor 7, two-channel measuring unit 8, two noise suppression elements made in form of capacitors 9 and 10, twelve resistors 11-14, 17,18, 23-25, 33-35, photon-coupled pair with radiator 19 and receiver 26, actuating relay 27, three diodes 28, 30 and 32, three transistors 20, 21 and 22, reference current source made in form of capacitor 31 and capacitor 29. EFFECT: enhanced efficiency. 1 dwg