Laser plane coordinate calibration device

A technology of plane coordinates and standard devices, applied in the direction of using optical devices, measuring devices, instruments, etc., can solve problems such as insufficient calibration methods

Inactive Publication Date: 2007-05-30
BEIJING CHANGCHENG METERING TEST TECH INST NO 1 GRP CO CHINA AVIATION IND
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Problems solved by technology

It can be used for error evaluation and calibration of large-scale portable three-coordinate measuring machines, overcoming the problem of insufficient existing calibration methods

Method used

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  • Laser plane coordinate calibration device
  • Laser plane coordinate calibration device

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Embodiment Construction

[0014] The technical scheme of the present invention will be described in further detail below in conjunction with accompanying drawing and embodiment:

[0015] Referring to shown in accompanying drawing 1~3, laser plane coordinate standard device described in the present invention comprises the three-way laser interferometry optical path of measuring horizontal axial coordinate, and it comprises horizontal main optical path OX, auxiliary optical path OY, OZ, and its main body is Marble linear guide rail 7, with a total length of 36 meters, is spliced ​​by nine pieces of marble. It is located on an independent foundation and supported by a jack. At one end, the target reflector is placed on the air-floating workbench 9, and the air-floating workbench 9 is driven by a motor to run along the marble linear guide rail, and the moving distance is measured by the interferometer 8. A set of laser interferometry optical path for measuring the vertical axis coordinates is added on the ...

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Abstract

An invention of laser plane coordinate standard device contains three laser interferometry optical paths which measures the horizontal axial coordinate, it characterized in that a set of laser interferometry optical path which measures vertical axial coordinate is added, the interferometry optical path includes a vertical axis, object operating platform is located on the vertical axis and moves along the vertical axis drive by motor, pyramid reflector and survey target are mounted on the operating platform, a rotating prism which deflects the light path from horizontal axial to vertical axial is set on lower of operating platform. The device builds laser plane standard coordinate plane with two sets of mutually perpendicular laser interferometry optical paths, the structure is simple, accuracy of Abbe error compensation is high, measurement precision is high, direct calibration and error evaluation which is based on the coordinate points of large scale portable three-coordinate measuring machine are realized for the first time.

Description

technical field [0001] The invention is a laser plane coordinate standard device, which belongs to the field of length measurement. It is directly applied to large-scale coordinate measurement. Background technique [0002] The development of large-scale metrology is mainly affected by the demand for industrial products. Especially in traditional large-scale industries such as aerospace and automobiles, the informatization and globalization of production products lead to the production of complex products that require seamless connection and unified assembly of parts produced from all over the world. Large parts must meet the traceability of international standards in size and give a description of the measurement uncertainty. In addition, ships, spacecraft, particle accelerators, and large ground telescopes all need accurate large-scale measurement, and large-scale measurement instruments are used to establish and maintain systems to ensure accurate calibration of the sys...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/02G01B21/04G01B11/02G01B11/03G01C25/00
Inventor 马骊群熊昌友王继虎何小妹曹铁泽李秋蓉
Owner BEIJING CHANGCHENG METERING TEST TECH INST NO 1 GRP CO CHINA AVIATION IND
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