Scanner is a computer input device. In our life, it is the same as our mouse and keyboard. Only its function will be different
The scanner is mainly used as one of the input devices to input images and photos into the computer. After the film and text materials or physical materials are scanned, they are used for document storage. Instead, it works with the printer, which inputs graphics into the computer, letters, symbols, etc. D is very frequent in our work.
At present, there are many kinds of scanners in the market, both advantages and disadvantages. The advantages of platform scanner: fast scanning speed, good quality, the most commonly used scanner. Disadvantages: the volume of scanned files is large and the area is limited. The usual size is A4. Can handle files of different sizes. Disadvantages: the desktop is slow and the price is higher than that of the platform scanner. The photo scanner has the advantages of high image quality and is a substitute for digital camera. Disadvantages: expensive, can only deal with photos.
At present, a three-dimensional scanner capable of three-dimensional scanning objects appears in China's market. Comparing the scanned three-dimensional point cloud model with the original CAD model, determining the full size, analyzing the difference between the final product and the original design, it is easy to quickly and accurately detect the error of complex shape and improve product quality. Its main purpose is to collect three-dimensional object data, Then use 3D data for reverse engineering, secondary creation, product design and 3D measurement. At present, it is mainly carried out in these fields.
