FUEL MEASUREMENT CAPACITIVE SYSTEM Russian patent published in 2010 - IPC B64D37/00 G01F23/00 G01F23/26 

Abstract RU 2384484 C1

FIELD: air transport.

SUBSTANCE: system contains fuel level sensors (3) installed in fuel tank and float magnetically operated fuel level switches (4), the first and second measurement units of fuel volume (6 and 7), calculation unit of fuel weight (5) and device for spatial attitude definition of free fuel surface (11), measurement unit of fuel density (10) and fuel density comparator (8) and signal conditioner (9). Besides the system includes multisensor (2) of fuel parametres installed in fuel sensor with temperature sensor (18); dielectric permittivity sensor (19) and sensor of ultrasound speed in fuel (20). Fuel level sensor represents electric capacity sensor combined with ultrasonic level sensor. Electric capacity sensor is made as coaxial cylindrical capacitor with internal and external electrodes; ultrasonic fuel level sensor is made as tubular acoustic waveguide. Float reflector electrode with permanent magnets installed in it is used as float magnetically operated fuel level switch.

EFFECT: measurement error reduction for fuel weight.

4 dwg

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RU 2 384 484 C1

Authors

Furmakov Evgenij Fedorovich

Petrov Oleg Fedorovich

Kalygin Igor' Stepanovich

Drjuk Viktor Aleksandrovich

Polivanov Nikolaj Vladimirovich

Dates

2010-03-20Published

2008-07-15Filed