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Measuring method of curved surface

A measurement method and surface technology, applied in measurement devices, instruments, etc., can solve the problems of too much redundant data and slow measurement speed, and achieve the effect of reducing redundant data, improving efficiency, and obvious data topology.

Inactive Publication Date: 2006-01-11
INST OF MECHANICS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
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Problems solved by technology

[0009] The purpose of the present invention is to provide a new curved surface measurement method in order to overcome the shortcomings and shortcomings of the existing curved surface measurement method, such as large redundant data and slow measurement speed.

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Embodiment Construction

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] The curved surface measuring method of the present invention can be realized by a contact measuring system. The contact measurement system may use a frame robot system in the prior art, or other measurement systems well known to those skilled in the art. figure 1 A schematic structural diagram of a tactile measurement system is given as an example. As shown in the figure, a tactile measurement system generally includes a frame 1, a measuring rod 2, and a probe 3. The measurement system can drive the probe 3 to move to the workpiece according to the program instructions. At a certain measurement point on the surface 5 of 4, the position data of the measurement point is measured by the trigger signal generated by the contact between the probe 3 and the surface 5, and the measurement data is returned to the computer in the measure...

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Abstract

The present invention discloses a curved surface measurement method. Said method is used for collecting position data of several points on the curved surface. Said method includes the following steps: dividing the curved surface to be measured into several triangular zones, using top point of every triangular zone as measurement point, then measuring position data of said measurement point. Said invention can greatly raise measurement efficiency and measurement speed.

Description

technical field [0001] The invention relates to the reverse engineering technology in the field of CAD / CAM, in particular to a contact type curved surface measurement method for measuring the surface of a real object. Background technique [0002] Reverse engineering is different from traditional engineering in that it constructs its design concept and CAD model based on an available physical model, and achieves the approximation, modification and perfection of the physical model by adjusting relevant parameters, and then uses these CAD models to for analysis and manufacture of products. It starts from the measurement of an existing physical model. The main object of its research is how to transform discrete data points into a segmented smooth and continuous CAD model, which is combined with traditional CAD / CAM systems to form a huge systems engineering. In fact, because the research of reverse engineering basically focuses on the process of reconstruction from physical sa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/00
Inventor 虞钢何学俭王立新程惊雷宁伟建贾艳华郑彩云蒋镜昱王骏李新张金城王建伦崔春阳甘翠华李海军
Owner INST OF MECHANICS - CHINESE ACAD OF SCI
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