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Ground testing device and testing method for optical atmosphere data system

A technology of atmospheric data and ground testing, applied in the direction of measuring devices, machine/structural component testing, aerodynamic testing, etc., to achieve the effects of simple calibration, high testing accuracy, and cost-saving calibration

Pending Publication Date: 2022-03-11
XIAN FLIGHT SELF CONTROL INST OF AVIC
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  • Abstract
  • Description
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Problems solved by technology

[0006] The purpose of the present invention: to propose a ground test device and test method for evaluating the optical air data system, improve and solve the problems encountered in the process of evaluating the optical air data system, the device is reliable, the precision is excellent, and the cost is controllable. Repeatable and convenient experiments in the ground environment, comprehensively complete the evaluation of the performance of the optical air data system

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  • Ground testing device and testing method for optical atmosphere data system
  • Ground testing device and testing method for optical atmosphere data system

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Embodiment 1

[0041] combine figure 1 and figure 2 As shown, this embodiment provides a ground test device for an optical air data system, the device includes a mobile platform, a test platform installed on the mobile platform, and a control and processing unit connected to the test platform.

[0042] The test platform includes a mounting assembly and a pitot tube, an optical antenna, and a GPS / Beidou receiving antenna 10 fixed on the mounting assembly; the central axis of the pitot tube is parallel to the central axis of the optical antenna of the optical air data system; and the pitot tube and the optical antenna Driven by the installation components, it rotates simultaneously in the horizontal plane or in the plane orthogonal to the horizontal plane.

[0043] The control and processing unit includes an air data calculation unit connected to the pitot tube, the main unit of the optical air data system connected to the optical antenna, a speed processing unit connected to the GPS / Beidou ...

Embodiment 2

[0065] This embodiment provides a ground testing method for an optical air data system, the optical antenna of the optical air data system is single-axis, and the method includes:

[0066] Step 1: Install the pitot tube and optical air data system on the mobile platform, so that the mobile platform loaded with the ground test system is in and kept in motion;

[0067] Step 2: Use the pitot to measure and establish a reference standard, specifically use the pitot to obtain the reference true air speed, angle of attack and sideslip angle. The control unit integrated in the cabinet 12 is used to control and change the angles of the horizontal angle control platform 3 and the vertical angle control platform 9 respectively through cables in the pipeline bundle 11 to provide simulated angle of attack and sideslip angle for pitot sensors. The pitot tube can measure the surrounding area, and is connected to the air data calculation unit integrated in the cabinet 12 through the round tu...

Embodiment 3

[0074] This embodiment provides a ground testing method for an optical air data system, the optical antenna of the optical air data system is multi-axis, and the method includes:

[0075] Step 1: Install the pitot tube and the optical air data system on the mobile platform, and keep the mobile platform loaded with the ground test system in motion.

[0076] Step 2: Use the pitot to measure and establish a reference standard, specifically use the pitot to obtain the reference true air speed and the first set of angle of attack and sideslip angle. Through the control unit in the cabinet 12, the rotation angles of the horizontal angle control platform 3 and the vertical angle control platform 9 are obtained, and the third group of attack angle and sideslip angle is obtained after calibration.

[0077] Step 3: Use the GPS / Beidou receiving antenna 10 and the speed processing unit to calculate the speed information of the mobile platform. Combined with the measurement results of the...

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Abstract

The invention belongs to the field of ground testing of an optical atmosphere data system, and particularly relates to a ground testing method and device for evaluating a laser atmosphere data system. The problems encountered in the process of evaluating the optical atmosphere data system are improved and solved, the device is reliable, the precision is excellent, the cost is controllable, the test can be repeatedly and conveniently carried out in the ground environment, and the evaluation on the performance of the optical atmosphere data system is comprehensively completed.

Description

technical field [0001] The invention belongs to the field of ground testing of optical atmospheric data systems, in particular to a ground testing method and device for evaluating laser atmospheric data systems. Background technique [0002] The air data measurement system provides important atmospheric parameters such as airspeed, angle of attack (angle of attack), sideslip angle, and air pressure altitude by measuring the aircraft's total atmospheric pressure, static pressure, total temperature, and local angle of attack. Safety and performance have a significant impact and are an integral part of modern aircraft avionics systems. Traditional atmospheric data measurement is mainly based on the principle of aerodynamics, using pitot tubes (or Pitot tubes, total static pressure tubes), temperature, angle of attack and other sensors to measure atmospheric parameter information, but there are many problems, such as installation location restrictions Many, easy to suffer from ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/497G01M9/00
CPCG01S7/497G01M9/00
Inventor 靳文华梁瑾李彬周原
Owner XIAN FLIGHT SELF CONTROL INST OF AVIC
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