The categories of 3D measuring instruments are as follows.
1, three-dimensional optical image measuring instrument: three-dimensional image measuring instrument, used to measure three-dimensional geometric dimensions and shape and position tolerance of high-precision measuring instruments.
2, three-dimensional laser scanning measuring instrument: three-dimensional laser scanning technology is on the recent development of a high-tech. With the three-dimensional laser scanner in the field of engineering is widely used, this technology has attracted the attention of the majority of researchers.
3, portable three-dimensional photographic scanning measuring instrument: the use of a combination of structured light technology, phase measurement technology, computer vision technology composite three-dimensional non-contact measurement technology.
4, three-dimensional laser scanning measurement system: three-dimensional laser scanning measurement system, the system can be horizontal 360 degrees, vertical 80 degrees, the distance of 1200m range of rapid scanning. Through the combination of direct and digital camera and GPS, it can obtain detailed, high-precision three-dimensional geomorphological data of the target within the measurement range within a few minutes.