Measuring and testing – Instrument proving or calibrating – Volume of flow – speed of flow – volume rate of flow – or mass...
Patent
1994-05-31
1996-03-05
Raevis, Robert
Measuring and testing
Instrument proving or calibrating
Volume of flow, speed of flow, volume rate of flow, or mass...
G01F 1700
Patent
active
054957451
ABSTRACT:
Apparatus for improving the accuracy of a fuel gaging system already installed on an airplane of the type having a number of fuel level sensors that each produce an output signal that can be combined to determine fuel volume. The apparatus includes control means for energizing the sensors, receiving the sensor signals and calculating a first volume value. An attitude indicator may be provided that is connected to the control means and that produces signals corresponding to the attitude of the fuel level relative to the sensors; the control means includes memory means for storing volume measurement compensation data based on predetermined volume measurement errors that are a function of fuel volume, and attitude when the attitude indicator is used; the control means compensating the first volume value to produce a second fuel volume value that is more accurate than the uncompensated first volume value.
REFERENCES:
patent: 4545020 (1985-10-01), Brasfield
patent: 4811596 (1989-03-01), Wolfgang
patent: 5072615 (1991-12-01), Nawrocki
patent: 5138559 (1992-08-01), Kuehl et al.
Lewis Leonard L.
Raevis Robert
Romanchik Richard A.
Simmonds Precision Products Inc.
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