Apparatus and method for determining the amount of material in a tank

摘要: An apparatus and method for determining tank contents employs processing means comparing sensing outputs (e.g. derived from a liquid level sensor (4)) with metering volumetric totaliser connected to dispenser (2)) in order determine errors the thereby provide corrected calibration characteristic. In preferred embodiment (which applies storage (1) containing petroleum), characteristic is refined, stages, by applying incremental changes conversion factor used data values related output computing correlations an optimum A (stored PROM) may be subsequently employed equipment displaying contents.