A method for measuring a fluid level and an apparatus thereof

Abstract From the Canadian patent

Switching means SW20 receiving capacitance measurement signals from a control part 35, controls a plurality of switches so as to consecutively measure capacitance between electrodes positioned adjacently. Capacitance values initially measured between the adjacent electrodes are stored in a storing circuit 30, and averaged to calculate an averaged initial value used in calculating correction values which represent differences between the averaged initial value and the initial capacitance values. Actual measured values are corrected using the correction values when detecting a fluid level. It is therefore possible to measure a fluid level without influence of floating items or the like with …