Unlock instant, AI-driven research and patent intelligence for your innovation.

Multi-function air data probes employing neural networks for determining local air data parameters

a neural network and air data technology, applied in the field of air data sensing systems, can solve the problems of a large amount of memory, high implementation cost, and a substantial degradation of performance of other current techniques, and achieve the effects of reducing the cost of implementation, reducing and improving the accuracy of air data

Inactive Publication Date: 2006-07-13
ROSEMOUNT AEROSPACE
View PDF7 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this technique produces relatively accurate results, it is slow, requires the use of a relatively large amount of memory and is costly to implement.
Further, it demonstrates a substantial degradation in performance when there are relatively large variations in the input measured pressure.
Other current techniques likewise suffer from several of the above-mentioned disadvantages.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Multi-function air data probes employing neural networks for determining local air data parameters
  • Multi-function air data probes employing neural networks for determining local air data parameters
  • Multi-function air data probes employing neural networks for determining local air data parameters

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] Referring to FIG. 1, an aircraft indicated generally at 10 is shown with a nose portion 12. Mounted air data sensing probes or MFPs are indicated schematically and generally at 14, 16 and 18. The positioning of aircraft 10 is with respect to a center plane or center line 20 that is perpendicular to the normal plane of the wings 21. Center line 20 is shown in a greatly exaggerated sideslip condition where the path of travel of aircraft 10 is indicated at 22, and where there is a substantial angle β between the path of travel line 22 and the line or plane 20. Angle β is the aircraft AOS, which is defined herein as an aircraft parameter. Other aircraft parameters or air data parameters include aircraft static pressure and Mach number, for example. The aircraft essentially is yawing to the left in FIG. 1. As the airflow passes across the aircraft, the probes 14 and 18 will be subjected to different local flow conditions, insofar as the local angle of wind and local static pressur...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An air data sensing probe or MFP includes a barrel having multiple pressure sensing ports for sensing multiple pressures. Instrumentation coupled to the pressure sensing ports provides electrical signals related to the multiple pressures. A neural network, coupled to the instrumentation, receives as inputs the electrical signals related to the multiple pressures, and in response, the neural network provides, as an output, electrical signals indicative of at least one local air data parameter for the air data sensing probe.

Description

[0001] The present application is a Divisional Application of, and claims priority from, U.S. patent application Ser. No. 10 / 328,487, filed Dec. 23, 2002.BACKGROUND OF THE INVENTION [0002] The present invention relates generally to air data sensing systems for use on an air vehicle. More particularly, the present invention relates to multi-function air data probes employed in an air data sensing system. [0003] Air data systems that calculate the aerodynamic aircraft angle of attack (AOA) and angle of sideslip (AOS) of an air vehicle utilizing independent probes that are not pneumatically coupled, but which have processors for interchanging electrical signals between the probes, are known in the art. These probes are sometimes referred to as multi-function probes (MFPs). MFPs include processing circuitry located at the probe itself as part of its instrument package. With the help of the processing circuitry, MFPs are capable of converting pressure, measured by sensors included in the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01L19/00G01L15/00G01L9/00B64D43/02G01P13/02
CPCB64D43/02G01P13/025
Inventor CRONIN, DENNIS J.DRUTOWSKI, KARL G.MACK, ANDREW P.
Owner ROSEMOUNT AEROSPACE