The 3D scanner is a scientific instrument used to detect and analyze the shape (geometry) and appearance data (such as color, surface albedo, etc.) of objects or environments in the real world.
The collected data is often used to perform 3D reconstruction calculations to create a digital model of the actual object in the virtual world. These models have a wide range of uses, including industrial design, flaw detection, reverse engineering, robot guidance, geomorphology, medical information, bioinformatics, criminal identification, digital heritage collections, film production, game creation materials, etc. application.
The production of 3D scanners does not rely on a single technology. Different reconstruction technologies have their advantages and disadvantages, and the cost and price are also high and low. There is currently no universal reconstruction technique, and instruments and methods are often limited by the surface characteristics of the object. For example, optical technology is not easy to handle shiny (high albedo), specular or translucent surfaces, and laser technology is not suitable for fragile or perishable surfaces.
Three-dimensional scanning technology is a high-tech integrating light, machine, electricity and computer technology. It is mainly used to scan the space shape and structure of objects to obtain the space coordinates of the surface of the object.
In recent years, 3D scanning technology has become more and more widely used in the manufacturing industry. High-speed 3D scanning and digital systems have played an increasingly important role in reverse engineering and have been successfully applied in the automotive and home appliance industries.
In recent years, the market has undergone tremendous changes in product design requirements, and many varieties and small batches have replaced the production models of small varieties and large quantities. Reverse engineering is about measuring, analyzing and improving the design of existing products. It is much faster than the development of traditional products. Because of the reverse engineering characteristics of 3D scanning, it greatly meets the market demand for new products.
The three-dimensional scanning technology can realize non-contact measurement. The equipment based on the three-dimensional scanning technology is mainly based on the three-dimensional measurement system, and has the advantages of high speed and high precision compared with the traditional measurement method.
At present, 3D scanning technology is mainly used in the following aspects: 1 reverse engineering. 2 Scan the physical object and create CAD data. 3 Create data for parts that cannot use 3D CAD data. 4 detection. 5 production line quality control and shape detection of product components. and many more.
The equipment developed according to the three-dimensional scanning technology has the following types: camera type, articulated arm type, three-coordinate, laser tracking type, and laser scanning type.
We know that the measurement of the dimensions of parts and products is an indispensable task in modern industrial production. In addition to the measurement of length and diameter, 3D measurement becomes another important measurement work in modern industrial production. If a coordinate measuring machine is used. Not only is the price expensive, the operation is complicated, and when measuring complex objects, the speed is very slow, and it is difficult to achieve on-line measurement. The three-dimensional scanning technology can quickly measure the three-dimensional coordinates of each point on the surface of the object, which is not satisfied by traditional measurement methods.
The application of 3D scanning technology in measurement can be traced back to the 1980s. At that time, American companies used 3D scanning equipment of structured light technology for component inspection on the assembly line with an accuracy of 0.02 mm; Some large auto companies, machining and assembly plants in Europe and the United States began to use 3D scanners to measure the shape and components of the product. Today, 3D scanners are widely used abroad.
Xingchuang·China is committed to the development of 3D scanning technology. Although it has only been for more than ten years, its products have been updated very quickly, thanks to its strong R&D team and the acquisition of world leaders such as AcTI CM and Inspeck. Bring new changes to its technological innovation.
At present, the 3D scanners such as portable 3D scanners and optical coordinate measuring systems produced by Xing Chuang·China have a large market share, and have won the recognition of many users with advanced technology.
Its research and development of 3D scanners are widely used in aerospace, automotive / transportation, consumer goods, manufacturing, heavy industry, power generation industries and other major industries.
Dezhong Shijun Optoelectronic Technology Co., Ltd. is committed to optical measurement for more than 30 years. Its hand-held 3D laser scanner, 3D scanning detector and other products have been recognized by the majority of users with advanced technology and reliable performance.
In the future, with the maturity of light, machine, point and computer technology, 3D scanners will be developed in the direction of faster speed, higher precision, lighter and more portable, and wider application fields.
Application field of 3D laser scannerAs a new high-tech product, 3D laser scanners have been successfully used in cultural relics protection, urban building surveying, topographic mapping, mining, deformation monitoring, factories, large structures, pipeline design, aircraft and shipbuilding, road and railway construction, tunnel engineering, Application in areas such as bridge reconstruction. 3D laser scanner, its scanning results are directly displayed as point clouds (pointcloud means countless points to measure the results of objects in the computer), and spatial point cloud data acquired by 3D laser scanning technology can quickly establish complex structures. The 3D visualization model of irregular scenes is both time-saving and labor-saving. This capability is unmatched by current 3D modeling software.
Application of 3D laser scanning technology: In recent years, 3D laser scanning technology has been continuously developed and matured, and 3D scanning equipment has also been gradually commercialized. The great advantage of 3D laser scanner is that it can quickly scan the measured object without the need of a reflective prism. High-precision scanning point cloud data is directly available. This enables efficient 3D modeling and virtual reproduction of the real world. Therefore, it has become one of the hotspots of current research, and has been widely used in the fields of digital protection of cultural relics, civil engineering, industrial measurement, natural disaster investigation, digital urban terrain visualization, and urban and rural planning.
(1) Surveying and mapping engineering field: dam and power station basic topographic survey, highway surveying and mapping, railway surveying and mapping, river mapping, bridge and building foundation surveying, tunnel inspection and deformation monitoring, dam deformation monitoring, tunnel underground engineering structure, Measure mine and volume calculations.
(2) Structural measurement: bridge reconstruction and expansion project, bridge structure measurement, structure inspection, monitoring, geometric dimension measurement, spatial position conflict measurement, space area, volume measurement, 3D high fidelity modeling, offshore platform, survey shipyard, power plant , the measurement of internal equipment of large industrial enterprises such as chemical plants; pipelines, line measurement, and various types of machinery manufacturing and installation.
(3) Measurement of buildings and monuments: measurement of fidelity, monuments (ancient buildings, statues, etc.) in the interior and exterior of buildings, protection of cultural relics, restoration of ancient buildings, preservation of materials, restoration of monuments, mapping of artifacts, imaging of defective products, Live virtual model, on-site protective image recording.
(4) Emergency services: anti-terrorism, land reconnaissance and attack mapping, surveillance, mobile reconnaissance, disaster estimation, traffic accident orthophoto, crime scene orthophoto, forest fire monitoring, landslide and debris flow warning, disaster warning and on-site monitoring , nuclear leakage monitoring.
(5) Entertainment industry: used in the design of film products, design for film actors and scenes, development of 3D games, virtual museums, virtual tour guidance, artificial imaging, scene virtual, live virtual.
(6) Mining industry: operations in open pit mines and metal mines, as well as areas inaccessible to people in hazardous areas. For example, a collapsed area, a cave, a cliff edge, etc. are scanned in three dimensions.
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