Apparatus and method for measuring attitude angle of three-axis air-bearing table

A measurement device and measurement method technology, applied in the field of measurement, can solve problems such as complex structure, achieve the effect of simple system structure, realization of attitude angle measurement, high-precision attitude angle measurement

Inactive Publication Date: 2006-12-13
HARBIN INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the system needs to add complex mechanical system and sensor system, the structure is too complex

Method used

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  • Apparatus and method for measuring attitude angle of three-axis air-bearing table
  • Apparatus and method for measuring attitude angle of three-axis air-bearing table
  • Apparatus and method for measuring attitude angle of three-axis air-bearing table

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Embodiment Construction

[0034] Below in conjunction with accompanying drawing and specific embodiment, the present invention is described in further detail:

[0035] combine figure 1 , where each label represents: 1 is an ordinary black and white CCD camera, 2 is an infrared filter, 3 is a bracket, 4 is a measurement cursor system, 5 is a power supply system on the three-axis air flotation table, 6 is the air flotation table top 7 is the terminal on the wireless communication equipment air bearing table, 8 is the spherical air bearing, 9 is the three-axis air bearing table, and various equipment participating in the simulation are installed, and 10 is the three-axis air bearing base , 11 is a compressed nitrogen cylinder, 12 is an image acquisition card, 13 is a ground terminal of wireless communication equipment, and 14 is an information processing computer.

[0036] The measurement system of the invention includes: a measurement cursor system, a black and white CCD camera, an image acquisition car...

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Abstract

The invention provides a device and a method for measuring attitude angle of a three-axis air-bearing table. The three-axis air-bearing table has a cursor measuring system installed on its table-board, and has a CCD vidicon mounted with bracket above the table; the CCD vidicon is connected with an image collection card via data cable; the image collection card is installed in a computer which is equipped with a wireless transmission device. The inventive method comprises steps of employing a black-and-white CCD vidicon suite to collect images of measure cursor system composed by infrared light emitting diodes which are performed infrared filtering; employing the computer vision theory and combining with the distance information between cursor dots to be measured to calculate the relative motion parameters that the air-bearing table board relatives to the CCD vidicon; and realizing three-axis air-bearing table attitude angle measurement via continuously obtained image array without touch, disturbance and with large range and high frequency. The invention also can perform attitude angle measurement of single-axis air-bearing table or five-freedom air-bearing table.

Description

(1) Technical field [0001] The invention belongs to the technical field of measurement and relates to a non-contact, interference-free and high-precision monocular vision measurement system for the attitude angle of a three-axis air bearing platform. (2) Background technology [0002] Realizing the full physical simulation of the satellite control system by using the three-axis air bearing table can verify the correctness of the design of the control system scheme and test the function and performance of the actual control system, which is an important means and method in the process of satellite development. [0003] The core problem in the process of realizing the full physical simulation of the satellite control system is to simulate the attitude movement of the satellite on the ground under the condition of weightlessness in orbit. The three-axis air bearing table relies on the air film formed between the spherical air bearing and the bearing seat by compressed air. An u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/00G01M19/00G01M99/00
Inventor 曹喜滨张世杰张国威孙兆伟刘丽霞
Owner HARBIN INST OF TECH
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