ON-BOARD FUEL GAUGING SYSTEM WITH TEMPERATURE AND STATIC DIELECTRIC FUEL PERMEABILITY COMPENSATION Russian patent published in 2002 - IPC

FIELD: aircraft instrumentation engineering; measurement of mass fuel capacity on board maneuverable aircraft. SUBSTANCE: proposed system includes external tank suspension and jettisoning warning units arranged in fuel tanks, fuel flow-rate sensors and temperature and dynamic dielectric fuel permeability meters mounted in service mains of wing tanks, refueling flow-rate sensors and fuel parameter meters mounted in refueling main of wing tank, as well as fuel level sensors and fuel parameter meters mounted in fuselage tanks. Systems includes also three fuel content computers, two comparison units, numerical setting and indicator. System is also provided with two different fuel parameters meters: fuel temperature meter and dynamic dielectric fuel permeability meter for efficiency compensation of fuel content measuring errors; dynamic dielectric fuel permeability is measured at high-frequency alternating current. EFFECT: enhanced accuracy of measurements at space evolution and g- loads, as well as during in-flight refueling. 4 cl, 1 dwg