FIELD: measurement technology; measurement of levels of liquid and viscous media; heat-power engineering for monitoring level of water in oil and mazut. SUBSTANCE: proposed method consists in immersing the capacity sensor in medium under test and currents between potential electrode and first potential electrode and second main electrode are measured relative to protective electrode (chassis). First auxiliary electrode and then first and second auxiliary electrodes are switched to second main electrode and currents are measured in each switching position. Magnitudes obtained in measuring the currents at presence of deposits on sensor electrodes with calibrated magnitude at absence of deposits, thus finding the magnitude of medium level coinciding with calibrated magnitude and relative amount of losses in layer of deposits. Ratios of currents of second main electrode for zero magnitude of level are calculated at presence and absence of deposits. Interval between currents of zero and measure magnitudes are interpolated. Then, conversion coefficient is calculated and intermediate magnitudes of levels are determined. Device proposed for realization of said method includes capacity sensor with sensitive element, perforated housing, AC supply and matrix of two main two auxiliary current electrodes which are located around potential electrode over arc of circle. Sensitive element is made in form of potential electrode coated with layer of insulated. AC supply source is connected between potential electrode and housing. Main electrodes are diametrically opposite relative to each other between potential and protective electrodes. Auxiliary electrodes are located around second main electrode symmetrically relative to plane passing through potential and main electrodes. Potential, main auxiliary electrodes are made in form of parallel strings. Main and auxiliary electrodes are coated with layer of insulation and are located at distance exceeding maximum probable thickness of layer of deposit on sensor electrodes. Sensor housing is connected with housing of reservoir. EFFECT: enhanced accuracy of measurements with layer of deposits taken into account. 3 cl, 2 dwg
