04214479 is referenced by 14 patents and cites 2 patents.

A full height compensation circuit for a capacitive type probe of the type used to measure the mass of fuel in a tank which includes a probe capacitor for immersion in the fuel connected to a source of power for supplying current to the probe capacitor, the probe capacitor current being summed with a current corresponding to the capacitance of the fuel tank in the empty state to provide an output voltage, the output voltage being positively integrated to a predetermined value as determined by the number of pulses counted by a counter, following which the counter is actuated to count down the number of pulses required to return the integrated output voltage to zero, and the number of pulses counted down providing a digital number output proportional to the mass of fuel sensed by the probe capacitor.

Title
Capacitive type fuel probe compensation circuit
Application Number
6/42252
Publication Number
4214479
Application Date
May 21, 1979
Publication Date
July 29, 1980
Inventor
Lawrence C Maier
Middlebury
VT, US
Agent
Edwin E Greigg
Assignee
Simmonds Precision Products
NY, US
IPC
G01F 23/26
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