초록 ▼

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 system is mounted on an air vehicle using two

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 system is mounted on an air vehicle using two or three sets of right and left pairs of probes. The probes of each set are vertically spaced from the probes of the other sets. The probes are made light weight and small. In the arrangement shown the probes provide triple redundancy and because of the orientation on the air vehicle provide all needed pressure and angle information, including the angle of sideslip.

대표청구항 ▼

An air data sensing assembly for installation on an air vehicle comprising a first air data sensing probe mounted at a first location on the air vehicle, and a second air data sensing probe mounted at a second location on the air vehicle, each of said air data sensing probes having first and second

An air data sensing assembly for installation on an air vehicle comprising a first air data sensing probe mounted at a first location on the air vehicle, and a second air data sensing probe mounted at a second location on the air vehicle, each of said air data sensing probes having first and second pressure sensing ports with axes lying on a plane including a longitudinal axis of the respective and being oriented to face in generally opposite directions on each probe to sense first and second pressures which vary as a function of angle of attack, the axes of the first and second ports of the first probe lying on a first plane at a defined inclination to a vertical longitudinal central plane of the air vehicle, and the axes of the first and second ports of the second probe lying on a second plane that is inclined a selected different inclination relative to the vertical longitudinal central plane of the air vehicle than the first plane, sensors to provide separate pressure signals from each of the ports on each of the probes whereby at least one of the functions consisting of static pressure and angle of attack sensed at each probe in the first and second planes, respectively, is obtained from the separate pressure signals, the second plane being inclined at a non-orthogonal angle relative to the first plane sufficiently to cause a change of indication of angle of attack relative to a change in air vehicle angle of sideslip from the signals provided from the ports on the first probe when relative flow past the air vehicle is at an angle relative to the vertical longitudinal central plane of the air vehicle.