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Contactless three-axle air-float stage corner measuring device and its measuring method

A non-contact, angle measurement technology, applied in the field of measurement, can solve problems such as complex structures, and achieve the effect of simple system structure, easy implementation, and high-precision angle measurement

Inactive Publication Date: 2007-02-14
HARBIN INST OF TECH
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  • Summary
  • Abstract
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  • 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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  • Contactless three-axle air-float stage corner measuring device and its measuring method
  • Contactless three-axle air-float stage corner measuring device and its measuring method
  • Contactless three-axle air-float stage corner measuring device and its measuring method

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Embodiment Construction

[0035] Below in conjunction with accompanying drawing and specific embodiment, the present invention is described in further detail:

[0036] combine figure 1 , where each label represents: 1 is the measurement target, 2 is the micro green laser, 3 is the power system of the three-axis air bearing table, 4 is the control unit PC-104 of the air bearing table, 5 is the image acquisition card, 6 is Spherical air bearing, 7 is a color CCD camera, 8 is the power system of the three-axis air flotation table, 9 is the base of the three-axis air flotation table, and 10 is a compressed nitrogen cylinder.

[0037] The measurement system of the present invention includes: a measurement target, a miniature green laser, a color CCD camera, an image acquisition card, and an air-floor platform control unit PC / 104.

[0038] The measurement target uses red LEDs, which improves the contrast with the surrounding environment and avoids the influence of changes in ambient light conditions. Multip...

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Abstract

A method for measuring corner of gas floating table in noncontact three shafts type includes erecting green micro laser and color CCD camera on table surface (TS) connecting CCD camera to image collecting card and erecting said card in TS control unit, setting measurement target formed by four red LED and white base plate above said table, using CCD camera to collect image formed by light points made on white base plate by said LED and micro laser, calculating out rotation parameter of TS by utilizing erection information of said target and CCD camera, obtaining said image continuously for realizing corner measurement of said table.

Description

(1) Technical field [0001] The invention belongs to the technical field of measurement and relates to a non-interference, cheap and high-precision visual measurement system for the corner of a non-contact 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 upward force i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/00G01B11/26
Inventor 曹喜滨张世杰孙兆伟张国威叶永驰刘丽霞
Owner HARBIN INST OF TECH
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