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Method and device for detecting, on the ground, the obstruction of a pressure tap of a static pressure sensor of an aircraft

A pressure sensor and measuring nozzle technology, which is used in measuring devices, using differential pressure to measure fluid velocity, measuring fluid pressure, etc., to achieve the effect of stable monitoring

Active Publication Date: 2009-11-11
AIRBUS OPERATIONS (SAS)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, known solutions only detect failures while the aircraft is in flight

Method used

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  • Method and device for detecting, on the ground, the obstruction of a pressure tap of a static pressure sensor of an aircraft
  • Method and device for detecting, on the ground, the obstruction of a pressure tap of a static pressure sensor of an aircraft

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Embodiment Construction

[0041] According to the present invention, and figure 1 The device 1 schematically represented in is used to monitor at least one static pressure sensor 2 of an aircraft, in particular a transport aircraft, wherein in order to simplify the drawings, in this figure 1 Shown in is only part of fuselage 3.

[0042] In particular, said device 1 is intended to detect any clogging of a pressure-measuring mouth 4A of a probe 4 of at least one static pressure sensor 2 of an aircraft.

[0043] It is known that such a static pressure sensor 2 is usually part of an anemometer 10 for measuring air data, enabling the determination of parameter values ​​such as the altitude, speed, etc. of the aircraft. These parameters are used in particular to pilot the aircraft. Typically, a static pressure sensor 2 includes:

[0044] - the detector 4, which is mounted transversely on the aircraft fuselage 3 and leads to the outside via the pressure measuring mouth 4A;

[0045] - Module 5 , which is c...

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PUM

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Abstract

A method and device for detecting, on the ground, the obstruction of a pressure tap of a static pressure sensor of an aircraft. The device includes a pressure sensor that measures the pressure inside a probe and a heating system for heating the probe. When the heating system is activated, the sensor carries out a first measurement of a parameter dependent on the pressure inside the probe. After a predetermined duration from the activation of the heating system, the sensor carries out a second measurement of the parameter. A central processing unit calculates the difference between the first and second measurements and compares this difference to a predetermined value. A warning device emits a warning signal indicating the detection of an obstruction if the difference is greater than the predetermined value.

Description

technical field [0001] The invention relates to a method and a device for detecting a blockage of a pressure measuring nozzle of at least one static pressure sensor of an aircraft on the ground. Background technique [0002] Usually, such a static pressure sensor is part of an anemometer for measuring air data in order to determine the values ​​of parameters such as: the altitude of the aircraft, its speed, etc., which are used in particular for piloting the aircraft. [0003] It is known that such a static pressure sensor usually includes at least: [0004] - a detector provided with a pressure measuring mouth passing through the fuselage of the aircraft; [0005] - a module connected to said detector by a tube; and [0006] - An activatable heating system capable of heating said detectors. [0007] Any failure of such a static pressure sensor must, of course, be able to be detected quickly and reliably, because otherwise the measurements taken will provide erroneous val...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L27/00G01D3/08G05B9/03G05D1/00
CPCG01P13/0006G05B9/02G01P5/14G01L27/007
Inventor L·方托瓦S·弗赖西纳特
Owner AIRBUS OPERATIONS (SAS)