The laser beam positioning and focusing system for surface treatment of products

Giliazov, M.R.; Nagulin, K. Yu.; Gil'mutdinov, A. Kh.

doi:10.1016/j.optlastec.2019.105624

Cited by 5 publications

(3 citation statements)

References 18 publications

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“…However, the use of unmanned aerial vehicles provides an opportunity to solve these problems. Unmanned aerial vehicles allow to create 3D-models of construction objects and their surrounding situation, while geometrically shapes and sizes of objects are directly proportional to reality [4,5].…”

Section: Discussionmentioning

confidence: 99%

“…Building Information Modelling (BIM) is the collection and processing of architectural, technological, economic and other information about the building and its interconnections with other objects, which were obtained during the design of this building [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. This knowledge is necessary for the construction of the building, as well as its reconstruction and equipment [3].…”

Section: Building Information Modellingmentioning

confidence: 99%

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Using UAV to create digital doubles of reality and BIM

Gura,

Gribkova,

Berkova

et al. 2023

E3S Web of Conf.

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Computer technology is widely developed and implemented. Many companies use unmanned aerial vehicles (UAVs) to obtain information about buildings and facilities for construction or renovation. The following methods can be used to provide data from UAVs: laser scanning or digital aerial photography. Each of them has its own advantages. The distinctive feature of laser scanning is the high speed of data acquisition and processing, as well as the ability to work at any time, regardless of the light. Digital aerial photography, in its turn, is characterised by high productivity and inexpensive equipment. Given the development of data acquisition and processing methods, the creation of digital copies of buildings and structures has recently become widespread. Today this process has become more accessible and convenient. This article deals with the acquisition of data from unmanned aerial vehicles. A digital twin is a digital copy of an object that is used to realistically represent a physical model. It can be a digital twin of a single object or a global model of processes affecting hundreds of thousands of people. Digital twin technology and BIM-technology are related to each other, but have a number of features that distinguish them from each other. The article compares information modelling and the technology of creating a digital twin of buildings. The aim of the paper is to identify and analyse the problems that can be encountered when creating a digital twin and to find their solutions.

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Section: Discussionmentioning

confidence: 99%

Section: Building Information Modellingmentioning

confidence: 99%

Using UAV to create digital doubles of reality and BIM

Gura,

Gribkova,

Berkova

et al. 2023

E3S Web of Conf.

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“…Laser have been widely used in industrial, biomedical and other fields [1][2][3][4][5]. Beam size is an important attribute of laser because it not only marks the performance of the laser, but also it is involved in the calculation of optical intensity [6][7][8][9]. Optical intensity of laser needs to be provided for laser cutting [10], drilling [11], and remote welding in industry [12] and laser microscopy in biological science [13].…”

Section: Introductionmentioning

confidence: 99%

Study on laser spot size measurement by scanning-slit method based on back-injection interferometry

Tan,

Liao,

Wong

2024

Semiconductor Lasers and Laser Dynamics XI

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Spot size is an important parameter of the laser, which not only represents the resolution of laser, but is also involved in the calculation of other parameters. Nowadays, CCD imaging systems, scanning imaging systems, and other sensors are used to measure the laser spot size. But they are all lacking flexibility when measuring the spot size in different locations, not to mention their high cost. In this study, a new spot size measurement device based on laser back-injection interferometry was presented. The photodiode integrated with the laser diode was used to collect the feedback laser, then the laser spot size was calculated by the feedback current. A commercial CCD imaging system was used to provide the laser spot size as a reference. Results show that our spot size measurement device could measure the spot size (Full Width Half Maximum) of 5 laser diode modules both in the x (Gaussian-like profile) and y (top-hat-like profile) direction through scanning-slit. Though there are variations between the scanning-slit results and spot sizes from the CCD imaging system due to the diffuse and specular reflection, the accuracy of the spot size measurement device ranges from 96.07 % to 99.46 %, which proves the reliability of our device. It is believed that our device could provide an alternate method for laser spot size measurement, which is cost-effective, easy to operate, and accurate.

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