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Device and method for measuring surface area of ​​irregular objects based on laser

A surface area, irregular technology, applied in the direction of measuring devices, optical devices, image analysis, etc., can solve the problem of low measurement accuracy

Active Publication Date: 2021-11-26
YANTAI JIERUI NETWORK TRADING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the method described in this invention is only suitable for measuring the surface area of ​​complex cylinders, and is not suitable for irregular objects with more complex shapes, and the measurement accuracy is not high

Method used

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  • Device and method for measuring surface area of ​​irregular objects based on laser
  • Device and method for measuring surface area of ​​irregular objects based on laser
  • Device and method for measuring surface area of ​​irregular objects based on laser

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Embodiment Construction

[0020] The present invention will be further described below by way of a specific embodiment.

[0021] In order to verify the accuracy of the measurement results of the present invention, it is made through three-dimensional printing. figure 1 The irregular object shown in the shape, including a side length, a high ten-dimensional column having a thickness of 1 μm, which is a cylinder and a hemisphere having a diameter of 1 to meter, and a square length of 1 minute. Triangular cylinders; positive factors, triangular cylinders and cylinders do not overlap each other and are located within the range of the top surface of the positive ten-stranded cylinders.

[0022] The instant surface area M theory in this irregular shape object is calculated below, and the unit: square parts

[0023] 1. Side area of ​​the positive ten-stranded column = 10 × 1 × 1 = 10

[0024] 2. The top area / bottom area of ​​the positive ten-sided column = 10 × 1 × 1.5389 ÷ 2 = 7.6946 (the front ten-shaped conn...

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Abstract

The present invention relates to the measurement of irregular surfaces or contours, in particular to a device and method for measuring the surface area of ​​irregular objects based on laser. , the three-dimensional laser scanner and the three-dimensional camera are respectively fixed on the cantilever, and can be displaced up / down, circumferentially rotated, and tilted / tilted relative to the object to be measured, and the computer is connected to the three-dimensional laser scanner and The three-dimensional camera. Compared with the prior art, the present invention can obtain the surface area of ​​irregular objects more accurately through the combination of two methods of three-dimensional laser scanning and three-dimensional visual reconstruction.

Description

Technical field [0001] The present invention relates to an irregular surface or contour meter, and more particularly to a measurement device and method of a laser-based irregular object surface area. Background technique [0002] The irregular object is often difficult to obtain accurate surface area due to its irregular shape, and the measured data of larger errors has adversely affects the application of data. [0003] Publication No. CN111536908A The Chinese invention patent discloses a complicated column surface area measuring device and method based on machine visual, which includes a desktop combined visual detection bracket, adjusting connector, ranging module, mobile focus platform, CCD camera and lighting Module, etc., when measuring, the measuring device acquires the height of the workpiece to be tested, detects the surface calibration parameter and takes the device to be tested, based on the connecting field screen, edge detection, etc., the bottom surface of the workp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/28G06T7/62
CPCG01B11/28G06T7/62
Inventor 刘兆伟王涛李腾安士才牟文青车伟帅贺业凤
Owner YANTAI JIERUI NETWORK TRADING