[특허]System and method for measuring liquid mass quantity

System and method for measuring liquid mass quantity 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01F-023/00 G08B-021/00
출원번호	US-0399601 (1989-08-28)
발명자 / 주소	Kuehl Johannes W. (Edmonds WA) Capps Jason W. (Bellevue WA)
출원인 / 주소	The Boeing Company (Seattle WA 02)
인용정보	피인용 횟수 : 50 인용 특허 : 0

초록 ▼

A method and system for measuring the mass quantity and volume of fuel in an aircraft fuel tank is disclosed. A pressure assembly (124) is disposed proximate the lowest portion of each fuel tank on an aircraft (60), with respect to a wing tank (100). The pressure sensor assembly includes a temperature probe (126) having a plurality of temperature sensors (128) mounted therein at spaced apart elevations within the fuel tank. Also included is an attitude sensor (150) in which are provided a roll sensor (156) and a pitch sensor (160) for respectively determining the roll and pitch angles of the fuel surface with respect to a vertical reference axis on the aircraft. The reference axis is aligned with an acceleration-sensitive axis of an accelerometer (164), which is operative to determine the acceleration acting upon fuel within the wing tank, and using the roll and pitch angles, the acceleration normal to the upper surface of the fuel. Wing bending sensors (82) are installed in each wing to determine the deflection of the wing as a result of loading the wing tanks with fuel and as a result of in-flight aerodynamic forces on the wing. The signals from each of these sensors are input to a microprocessor (178), which determines the height of fuel in each tank, corrects for variations in density due to temperature stratification, determines the volume and mass of fuel as a function of fuel height, correcting for the attitude of the fuel tank and for acceleration applied to the mass of fuel during measurement of its pressure at the bottom of each fuel tank.

대표청구항 ▼

A system for determining a quantity of a liquid within a container, said container having a shape, said liquid having as a property a pressure, a volume, a temperature, a height, a mass, and a surface, said surface having an orientation, the system comprising: (a) a pressure sensor disposed proximate a lower portion of the container, said pressure sensor producing a signal indicative of the pressure of the liquid at the pressure sensor; (b) a plurality of temperature sensors disposed at a plurality of different elevations within the liquid, each temperature sensor producing a signal indicative of the temperature of the liquid at the elevation of that temperature sensor; and (c) processor means, connected to receive the signals produced by the pressure sensor and the temperature sensors, for determining: (i) a density profile for the liquid, defining its density at different elevations in the container as a function of a reference density of the liquid and of the temperature of the liquid at the temperature sensors; (ii) the height of the liquid in the container as a function of the density profile and the pressure of the liquid; and (iii) the quantity of liquid in the container as a function of its height and of parameters modeling the shape of the container.

이 특허를 인용한 특허 (50)

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Breed, David S.; Duvall, Wilbur E.; Johnson, Wendell C.; Sanders, William Thomas, Method and apparatus for measuring the quantity of fuel in a vehicle fuel tank subject to external forces.
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Pindus,Gerald; Husson,Alan; Carleton,Jeffrey; Hoffman,Lee, Method and apparatus for measuring the volume of fuel in a tank.
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Rogers, Warren F.; Collins, John R.; Jones, Jillanne B., Method and apparatus for monitoring operational performance of fluid storage systems.
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Rogers, Warren F.; Collins, John R.; Jones, Jillanne B., Method and apparatus for monitoring operational performance of fluid storage systems.
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Rogers, Warren F.; Collins, John R.; Jones, Jillanne B., Method and apparatus for monitoring operational performance of fluid storage systems.
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Choe, Howard C.; Chachich, Alan C.; Woodroffe, Jaime A., Method and apparatus for monitoring rotating machinery.
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Choe, Howard C., Method and apparatus for self-diagnosis of a sensor.
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Haskins, Richard, Method and assembly for attaching fuel system components to a rib before the assembly is joined to an aircraft wing.
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Burner,Alpheus W.; Barrows,Danny A., Method for correcting control surface angle measurements in single viewpoint photogrammetry.
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Volto, Eric; Rohaut, Antoine; Francini, Francçois; Reuther, Paul Daniel, Method for simulating the gauging of a liquid tank.
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Herbstreit,Michael E.; Tompras,Anthony D.; Levinskas,Edward J., Methods and systems for predicting fuel sensor performance within a tank during motion.
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Hyde, Roderick A.; Jung, Edward K. Y.; Myhrvold, Nathan P.; Tegreene, Clarence T.; Gates, III, William H.; Whitmer, Charles; Wood, Jr., Lowell L., Methods of manufacturing temperature-stabilized storage containers.
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Arunachalam, Raghu, Multi-sense environmental monitoring device and method.
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Hoben John Charles ; Westmoreland Allen Ray ; Bukhman Alexander,ILX ; Bukhman Israel,ILX, Multi-sensor hydrostatic gauge for fuel storage tanks.
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Sandiford, J. Patrick; Smiles, Mark, Overpressure protector.
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Arthur M. Forsythe, Jr. ; Lisa Brackenbury Maurice, Pressure based fluid gauging system.
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Breed, David S.; Johnson, Wendell C.; DuVall, Wilbur E., Remote monitoring of fluid storage tanks.
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Hyde, Roderick A.; Jung, Edward K. Y.; Myhrvold, Nathan P.; Tegreene, Clarence T.; Gates, III, William H.; Whitmer, Charles; Wood, Jr., Lowell L., Temperature-stabilized storage systems.
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Bloedow, Jonathan; Calderon, Ryan; Gasperino, David; Gates, William; Hyde, Roderick A.; Jung, Edward K. Y.; Liu, Shieng; Myhrvold, Nathan P.; Pegram, Nathan John; Tegreene, Clarence T.; Whitmer, Charles; Wood, Jr., Lowell L.; Yildirim, Ozgur Emek, Temperature-stabilized storage systems with regulated cooling.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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System and method for measuring liquid mass quantity 원문보기

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System and method for measuring liquid mass quantity 원문보기

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