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| Number | Title | Issue Date |
| 8104339 | Systems and methods for determining air data parameters Systems and methods determine at least one air data parameter, such as an angle of attack (AOA), an angle of sideslip (AOS), a total pressure (pt), and/or a static pressure (ps), from information provided by four pressure sensors coupled to fou... | 01/31/2012 |
| 7389686 | Methods and systems for determining air data parameters An air data system is described that includes a cone-shaped probe, a plurality of pressure transducers, and a processing device. The cone-shaped probe includes a first pressure port formed in a substantial tip of the probe and extending therethrough, and a plurality... | 06/24/2008 |
| 7377159 | Methods and system for determining angles of attack and sideslip using flow sensors A system for determining angle of attack and angle of sideslip of an air vehicle is described. The system includes a plurality of mass flow sensors, at least a portion of which are mounted to result in a differential in air flow across the respective mass air flow s... | 05/27/2008 |
| 7363825 | Non-contact position sensor housing using existing torque sensor probe A sensors casing supports torque sensors and the position sensors and segment magneto-sensitive elements to detect the relative rotation between an input shaft and an output shaft and the angular position of the shaftsin a steering column housing. The sensor casing ... | 04/29/2008 |
| 7357358 | Aircraft leading edge device systems and corresponding sizing methods Aircraft leading edge device systems and methods for sizing such systems are disclosed. In one embodiment, a spanwise lift coefficient distribution for an airfoil corresponding to at least one design condition and at least one aircraft angle of attack is identified,... | 04/15/2008 |
| 7334467 | Air data module that ensures sufficient air data performance after exposure to relatively high overpressure An air data module is provided that is relatively small, lightweight, low cost, uses relatively low power, and is relatively easy to install, test, and maintain. The air data module includes a housing that is adapted to be mounted to an external surface of an aircra... | 02/26/2008 |
| 7334469 | Methods and systems using ratiometric characterizations to improve air data accuracy A method for characterizing pressure sensors to improve accuracy in an air data system is described where the sensors include at least one static pressure sensor and at least one total pressure sensor. The method includes characterizing the static pressure sensor an... | 02/26/2008 |
| 7284420 | Air data system and method for rotary aircraft An air data system and method for a rotary aircraft is described. The air data system includes a plurality of flush ports connected via tubing to a plurality of air flow sensors that can measure air flow speeds as low as approximately 0.02 knots. The flush ports are... | 10/23/2007 |
| 7275428 | Device for ensuring safe movement of a moving part The invention relates to a device for ensuring safe movement of a moving part. The movement of the moving part is guided along or about an axis (4; 42) and is limited by at least one stop (1; 20; 51). The device comprises means for recording the exceed... | 10/02/2007 |
| 7257470 | Fault isolation method and apparatus in artificial intelligence based air data systems A method providing fault isolation, in an air data system which uses artificial intelligence to generate an air data parameter, includes generating the air data parameter as a function of a plurality of measured values such as static pressures. Then, estimates of ea... | 08/14/2007 |
| 7213454 | Method and apparatus for obtaining improved accuracy and range for air data parameters inferred from independent measurements of interdependent pressures A method of calculating a system level air data parameter for an aircraft, for example aircraft angle-of-attack (AOA) and/or angle-of-sideslip (AOS), includes measuring a plurality of local static pressures pi. Next, a plurality of non-dimensional pressur... | 05/08/2007 |
| 7206674 | Information display system for atypical flight phase Method and system for displaying information on one or more aircraft flights, where at least one flight is determined to have at least one atypical flight phase according to specified criteria. A flight parameter trace for an atypical phase is displayed and compared... | 04/17/2007 |
| 7185538 | Methods and systems for sensing air vehicle airspeed A system for determining airspeed of an air vehicle is described which includes and airflow sensor and a processor. The airflow sensor is located within an airflow path extending substantially through the air vehicle, and the processor is configured to receive a sig... | 03/06/2007 |
| 7181972 | Static and dynamic pressure sensor A sensor, in accordance with aspects of the present technique, is provided. The sensor comprises a membrane formed of gallium nitride. The membrane is disposed on a substrate, which is wet-etched to form a closed cavity. The membrane exhibits both a capacitive respo... | 02/27/2007 |
| 7178394 | Pressure testing assemblies for use in flow bodies and methods of testing flow bodies Pressure testing assemblies for use in flow bodies, testing systems, and methods of testing flow bodies are disclosed herein. In one embodiment, a pressure testing assembly includes a support member and a plurality of electronic pressure-sensing modules detachably c... | 02/20/2007 |
| 7175136 | Method and apparatus for detecting conditions conducive to ice formation A method for detecting ambient conditions conducive to ice formation. The method includes the steps of measuring at least one parameter selected from a group of parameters consisting of a static pressure, a total pressure, a total temperature, a dew point temperatur... | 02/13/2007 |
| 7155969 | System for and method of acoustic and through skin air data measurement A system for determining physical characteristics of an incident flow stream over a surface of a vehicle includes a plurality of acoustic sensors mounted to the surface and configured to sense pressure fluctuations caused by the incident flow stream. The plurality o... | 01/02/2007 |
| 7155968 | Multifunction probe with variable flexure The invention relates to a multifunction probe for aircraft. The probe has a mobile vane intended to align with the axis of an air flow around the probe. The mobile vane comprises first pressure pickup means for measuring the total pressure of the flow and second pr... | 01/02/2007 |
| 7147338 | Circuit on a curved, or otherwise irregularly shaped, surface, such as on a helmet to be worn on the head, including a fiber optic conductive path A curved surface, such as a helmet, including a light source and light conductive paths. Light emitting diodes (LEDs) provide the light source and fiber optic conductors provide the light conductive paths. The fiber optic conductors have polished ends to create lens... | 12/12/2006 |
| 7124630 | Multipurpose sensor for aircraft The invention concerns a multifunction probe for aircraft. The probe measures the total pressure and measures the total temperature of an air flow surrounding the aircraft. The total pressure is measured by a first tube, the so-called Pitot tube oriented substantial... | 10/24/2006 |
| 7127335 | Low airspeed assist algorithm for air data computer applications A method of estimating the airspeed of an aircraft during low airspeed conditions includes measuring a negative impact pressure using a pitot-static probe on the aircraft. Then, the method includes estimating a non-zero airspeed of the aircraft as a function of the ... | 10/24/2006 |
| 7114847 | Total temperature probe and method of determining total temperature The invention relates to a total temperature probe for an aircraft and to a method of determining temperature by means of such a probe. The total temperature measurement probe comprises a base, an external face of which is intended to be mounted so as to be substant... | 10/03/2006 |
| 7051586 | Method for determining aerodynamic parameters and method for detecting failure of a probe used for determining aerodynamic parameters The invention pertains to a process for determining aerodynamic parameters of an airflow surrounding an aircraft. On the basis of at least two probes situated on the skin of the aircraft, each probe comprising means for measuring the local angle of attack (αlo... | 05/30/2006 |
| 7014359 | Temperature measuring device A temperature measuring device is provided which measures the total temperature T1 of an airflow based on the measured temperature T of the airflow flowing over the surface of an approximately blade-shaped casing arranged within the airflow flowing into an en... | 03/21/2006 |
| 6963810 | Method and system for locating critical flow feature indicators in three dimensional flow regimes A method for locating two dimensional critical flow features on a surface of a three dimensional body immersed in a fluid stream is presented. The method includes applying a hot film sensor array on the surface of the body. The hot film sensor array includes a plura... | 11/08/2005 |
| 6941805 | Multi-function air data sensing probe having an angle of attack vane A multi-function air data sensing probe has a strut that is mounted on an aircraft and extends laterally from the aircraft skin. The strut is supported on a base plate, and has a pitot pressure sensing tube at the outer end thereof, with a pitot port facing upstream... | 09/13/2005 |
| 6940425 | Apparatus and method for determining information for aircraft The present invention provides a method for determining information for an air vehicle including the steps of providing a first coefficient of pressure data point, providing a situation involving the air vehicle, deriving pressures during the situation and deriving ... | 09/06/2005 |
| 6937924 | Identification of atypical flight patterns Method and system for analyzing aircraft data, including multiple selected flight parameters for a selected phase of a selected flight, and for determining when the selected phase of the selected flight is atypical, when compared with corresponding data for the same... | 08/30/2005 |
| 6915687 | Aerodynamically shaped static pressure sensing probe A static pressure sensing probe has an aerodynamically shaped cross section, and extends laterally from an aircraft surface sufficiently so that an outer end of the probe is a short distance outside the boundary layer on the aircraft surface on which the probe is mo... | 07/12/2005 |
| 6609421 | Sideslip correction for a multi-function three probe air data system A multi-function probe system that provides redundancy for measurements and compensates for effects of sideslip of an aircraft includes at least two probes that are symmetrically located on the opposite sides of the aircraft, and a third probe mounted on ... | 08/26/2003 |
| 6594559 | Iterative method of aircraft sideslip compensation for multi-function probe air data systems In an iterative method of determining aircraft flight data parameters using first and second multi-function probes, an assumed value of a first aircraft parameter is defined to be equal to an initial value. Using the assumed value of the first aircraft pa... | 07/15/2003 |
| 6561020 | Method to calculate sideslip angle and correct static pressure for sideslip effects using inertial information A method of the invention allows the determination of aircraft sideslip using an air data probe and an inertial reference unit. A lateral sideslip component ଲL of the aircraft is calculated as a function of inertial flight information. An... | 05/13/2003 |
| 6490510 | Fixed multifunction probe for aircraft A fixed multifunction probe, e.g., for aircraft and configured to measure air flow parameters near an airplane. The probe includes a body closed by a rounded cap, at least three pressure taps situated at specified positions of the body, a pressure measure... | 12/03/2002 |
| 6271769 | Apparatus and method for measuring and displaying angular deviations from angle of zero lift for air vehicles The present invention provides a flight instrument apparatus and method for its use in air vehicles having an indicator visibly displaying angles from zero lift and having a data port for electrically exporting angles from zero lift wherein pressures from... | 08/07/2001 |
| 6076963 | Aircraft probe with integral air temperature sensor Aircraft probe assemblies integrally include a total airstream temperature sensor. Preferred embodiments include at least one pressure sensing port and a temperature sensing port which are in fluid communication with a pressure sensing chamber and a tempe... | 06/20/2000 |
| 6012331 | Multifunction aircraft probes Improved multifunction probe designs include circumferentially separated pairs of sensing ports which may respectively be dedicated to angle of attack functionality and air data pressure sensing functionality. In one preferred embodiment, a multifunction ... | 01/11/2000 |
| 5852237 | Apparatus and method for measuring the side slip of a low observable aircraft An apparatus and method for measuring airflow past an aircraft by extending a probe (14) from the aircraft into the airflow with a retraction-extension mechanism (20) when a measurement is desired, and retracting the probe (14) when a measurement is not d... | 12/22/1998 |
| 5789671 | Azimuth misalignment determination in an inertial navigator A process and algorithms to determine and correct for the error in azimuth alignment and the errors in "North" and "East" Gyro Drift Rates in an inertial navigator which has been aligned via gyrocompassing, or via the "Stored Heading" technique, with the ... | 08/04/1998 |
| 5644078 | Optical gyroscope An orientation monitoring apparatus includes an inner spherical shell rigidly fixed within an outer spherical shell, and a spherical ball positioned between the two shells. The inner shell has a polar coordinate grid impressed on it so that the position o... | 07/01/1997 |
| 5616861 | Three pressure pseudo -Ɗ-P sensor for use with three pressure air data probe An air data sensing system utilizes a plurality of probes, each probe having three pressure sensing ports, and each assembled with a sensor package that minimizes the need for corrections due to temperature or other variations in ambient conditions. The s... | 04/01/1997 |
