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Airborne panoramic rotor pyramidal angle measurement device

A measuring device and rotor technology, applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problem that methods and means are not basic, and achieve the effect of compact structure and convenient shooting.

Inactive Publication Date: 2011-04-13
HARBIN ENG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There are many reports about the measurement method of the helicopter rotor co-taper in the open literature, and there are also some descriptions on the measurement of the helicopter rotor parameters, but the methods and means used in the measurement are not based on the measurement of the airborne panoramic vision.

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  • Airborne panoramic rotor pyramidal angle measurement device
  • Airborne panoramic rotor pyramidal angle measurement device
  • Airborne panoramic rotor pyramidal angle measurement device

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Embodiment Construction

[0024] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0025] combine figure 1 , The helicopter rotor model test bench is made of stainless steel, and the actual helicopter rotor is scaled down, so that it has the same physical parameters and characteristics as the real rotor helicopter flying at a constant speed. The airborne panoramic rotor co-taper measurement device is composed of a viewfinder module, a perspective imaging module, a protection module, and a panoramic image embedded processing module; the viewfinder module is connected to the protection module 3 through a hyperboloid mirror connector 1, and the protection module is connected through a flange 11 is fixedly installed on the rotor hub 12, and the perspective imaging module and the panoramic image embedded processing module are installed in the protection module 3; Curved mirror connector 1; perspective imaging module is composed of high frame rate sc...

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Abstract

The invention provides an airborne panoramic rotor pyramidal angle measurement device, which consists of a framing module, a perspective imaging module, a protective module and a panoramic image embedded treatment module, wherein the framing module is connected with the protective module through a connector; the protective module is connected and fixedly arranged on a rotor hub through a flange; the perspective imaging module and the panoramic image embedded treatment module are arranged in the protective module; the framing module comprises a hyperboloidal mirror arranged in a protective glass tube and a hyperboloidal mirror connector arranged on the top end of the protective glass tube; the perspective imaging module consists of a high-frame rate scientific-grade camera, a perspective camera and a Cameralink video transmission line; and the panoramic image embedded treatment module consists of a Cameralink viceo input and output interface, an image processing unit and a data output interface. The measurement device has the characteristics of simplicity of structure, convenience for regulation, simplicity and quickness of installation and maintenance, operation stability and reliability, and is used for helicopter rotor pyramidal angle measurement.

Description

technical field [0001] The invention relates to a device for measuring the co-conicity of a helicopter rotor. Background technique [0002] When the rotorcraft is flying, the blades will be slightly upturned to form an inverted cone. If the lift force is consistent, the blades will move on the same cone, which is usually called a common cone. If the lift force is inconsistent, the trajectories of the blades are not conical, and the heights of the blades are not equal. The co-conicity of the helicopter rotor is a main indicator of the rotor dynamic balance measurement. It is directly related to the safety of the helicopter and the quality of other important performances. It is an important inspection item in the production and maintenance of the helicopter. Since the measurement of co-conicity is often carried out under the dynamic condition of high-speed rotation of the blade, there have always been problems in measurement difficulty and poor measurement accuracy in the pas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/26
Inventor 朱齐丹蔡成涛夏桂华王立辉姜迈邓超
Owner HARBIN ENG UNIV
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