3D laser scanning technology is a type of remote sensing that uses lasers to determine the characteristics of an object or environment. It is used heavily in the field of civil engineering as it has many advantages over traditional surveying methods. It provides more accurate data than a traditional survey and can be utilized for much longer distances than other forms of remote sensing. 3D laser scanning also has applications in other fields such as computer-aided design, construction management, and mining. Here are some things you need to know about 3D laser scanner in civil engineering projects. How 3D Laser Scanning Works 3D laser scanning works by projecting a laser into the environment. The laser bounces off of all objects in its path before returning to a sensor. The sensor records the time it took for the beam to return and, like a traditional survey, uses simple geometry to calculate distances. 3D laser scanners can collect data on an object using either active or ...