Pitot static systems with angle of sideslip determination and compensation
AssigneeRosemount Aerospace Inc.
InventorDarren G. Jackson
Life of this patent
Estimating the term…
Abstract
An air data probe system can include a pitot static system configured to sense at least one total pressure value of a flow at one or more locations, at least one static pressure value of the flow at the one or more locations, and, directly or indirectly, at least one differential static pressure value of the flow at the one or more locations. The system can include an angle of slip (AOS) module configured to determine a local angle of slip (LAOS) value at each location based on the at least one total pressure value at each location, the at least one static pressure value at each location, and the at least one differential static pressure value at each location.
Claims20
An air data probe system, comprising:
- a pitot static system configured to sense at least one total pressure value of a flow at one or more locations, at least one static pressure value of the flow at the one or more locations, and, directly or indirectly, at least one differential static pressure value of the flow at the one or more locations;
- and
- an angle of slip (AOS) module configured to determine a local angle of slip (LAOS) value at each location based on the at least one total pressure value at each location, the at least one static pressure value at each location, and the at least one differential static pressure value at each location,
A computer implemented method for determining an angle of slip, comprising:
- receiving at least one total pressure and at least one static pressure value of a flow from a pitot static system at one or more locations;
- receiving at least one differential static pressure value of the flow at each location from the pitot static system or deriving the differential static pressure from a plurality of static pressure values from the pitot static system at each location;
- determining a local angle of attack (LAOA) value at each location based on the at least one differential static pressure value;
- and
- comparing total pressure to static pressure ratio (Pt/Ps) to the LAOA value to determine a local angle of slip (LAOS) value at each location based on stored LAOS correlation data for each location.
A non-transitory computer readable medium comprising computer executable instructions, the instructions configured to cause a computer to perform a method, the method comprising:
- receiving at least one total pressure and at least one static pressure value of a flow from a pitot static system at one or more locations;
- receiving at least one differential static pressure value of the flow at each location from the pitot static system or deriving the differential static pressure from a plurality of static pressure values from the pitot static system at each location;
- determining a local angle of attack (LAOA) value at each location based on the at least one differential static pressure value;
- and
- comparing total pressure to static pressure ratio (Pt/Ps) to the LAOA value to determine a local angle of slip (LAOS) value at each location based on stored LAOS correlation data for each location.
Dependencies are inferred from the claim text.