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Three dimension outline measuring device and method for mirror article surface

A technology of object surface and three-dimensional contour, which is applied in the field of detection, can solve the problems of complex calculation and large cumulative error, and achieve the effect of simple system structure, reduced measurement cost and improved measurement efficiency

Inactive Publication Date: 2007-04-11
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

The above three structured light technologies can only measure the gradient distribution of the measured surface, and the height information of the measured surface must be obtained through numerical integration. The calculation is more complicated and there is a large cumulative error

Method used

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  • Three dimension outline measuring device and method for mirror article surface
  • Three dimension outline measuring device and method for mirror article surface
  • Three dimension outline measuring device and method for mirror article surface

Examples

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Embodiment Construction

[0021] A preferred example of the present invention is described in detail as follows in conjunction with accompanying drawing:

[0022] Referring to Fig. 1, the device for measuring the three-dimensional profile of the surface of a specular object is composed of an LCD flat panel display (1), an industrial camera (2), a computer (3) and a guide rail (4). The LCD flat panel display (1) is fixed on the guide rail (4) and connected with the computer (3) through the data cable (5), which can display the sinusoidal fringe patterns generated by the computer (3), and project these fringe patterns on the measured on the surface of the object. The industrial camera (2) is connected with the computer (3) through the video line (6), and can shoot the projected fringe image on the surface of the measured object, and transmit the fringe image to the computer (3) through the video line (6). The LCD flat panel display (1) is vertically installed on the guide rail (4), and can be translated...

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Abstract

The present invention provides 3D mirror object surface outline measuring device and method. The measuring device consists of LCD panel display, industrial video camera, computer and guide track. The LCD panel display is fixed on the guide track and connected via electric cable to the computer, and the industrial video camera is connected via video line to the computer. The measuring method includes device regulation, data acquisition, data processing and other steps. The device of the present invention is simple in composition, and the measuring method is simple and has data processing with less complexity.

Description

technical field [0001] The invention relates to a detection technology, in particular to a three-dimensional profile measurement device and a measurement method for the surface of a specular object. Background technique [0002] The three-dimensional profile measurement technology of mirror object surface has important application value. In engineering, the surface property of a large number of parts is specular reflection. For example: finishing parts such as polished molds; certain surface coating parts, such as sprayed car covers, etc.; certain glass and plastic products; printed circuit board solder joints, etc. At present, two methods are mainly used for the three-dimensional measurement of such parts. First, the use of contact measurement equipment such as coordinate measuring machines or three-dimensional measurement arms is very inefficient; second, the surface is sprayed, and its properties are changed to diffuse reflection, then measured by optical methods, and f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/24G01B11/25G01B21/20
Inventor 郭红卫陈明仪章亚男陶涛杨琦赵展
Owner SHANGHAI UNIV
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