Surveying Instruments

Surveying or land mensuration is that the technique, profession, and science of accurately determinant the terrestrial or three-dimensional position of points and therefore the distances and angles between them; normally practiced by authorized Surveyors, and members of assorted building professions. These points are sometimes on the surface of the world, and that they are usually accustomed establish land maps and bounds for possession, locations (building corners, surface location of underground features) or alternative governmentally needed or civil law functions (property sales). To accomplish their objective, surveyors use parts of arithmetic (geometry and trigonometry), physics, engineering and law. An alternative definition, per the Yankee Congress on mensuration and Mapping (ACSM), is that the science and art of creating all essential measurements to work out the relative position of points or physical and cultural details on top of, on, or at a lower place the surface of the world, and to depict them in a very usable type, or to determine the position of points or details.