The need for accurate, high-resolution automobile fuel gauges is becoming increasingly felt and this can best be fulfilled with modern developments of the capacitance-measuring technique used for aircraft fuel tanks.An inexpensive probe is described which can be used, with suitable circuitry, to give a 0.1 gallon resolution and accuracy, from which the influence of slosh and tilt is effectively eliminated.A low-cost measuring circuit is described, based on CMOS astable oscillators, which produces digital readings virtually immune to noise, voltage and temperature changes, and the effects of ageing.
An Alternative Approach to Automotive Fuel Gauging
Sae Technical Papers
1979 Automotive Engineering Congress and Exposition ; 1979
1979-02-01
Conference paper
English
An alternative approach to automotive fuel gauging
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