OHMIC LEVEL GAUGE Russian patent published in 1995 - IPC

FIELD: measurement technology. SUBSTANCE: ohmic level gauge has two electrodes 1.1, 1.2 with different resistances, measuring instrument 2, two standard resistors 3.1, 3.2, power supply source 4, variable resistor 6. Standard resistors form adjoining arms of measurement bridge which opposite arms include first electrode with variable resistor connected in series and second electrode. Point of connection of standard resistors is linked to first lead-out of power supply source which second lead-out and point of connection of lower leads of electrodes are grounded. Measuring instrument is placed into output diagonal of bridge. EFFECT: enhanced operational reliability. 1 dwg