Traditional Culture Encyclopedia - Photography major - Photographic instrument of engineering measuring instrument

Photographic instrument of engineering measuring instrument

The main instruments for field work of ground photogrammetry are assembled by camera and theodolite. The camera has an objective lens, a camera box, a film carrier and an image detector. Accurate frame marks are mounted on the carrier frame. Theodolite is used to determine the coordinates of the camera station and the detection point, and to determine the direction of the main optical axis. Mainly used for topographic and non-topographic photogrammetry.