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Instruments used in surveying include: Alidade; Alidade table; Cosmolabe; Dioptra; Dumpy level; Engineer's chain; Geodimeter; Graphometer; Groma (surveying) Laser scanning; Level; Level staff; Measuring tape; Plane table; Pole (surveying) Prism (surveying) (corner cube retroreflector) Prismatic compass (angle measurement) Ramsden surveying ...
The higher-order (high precision, usually millimeter-to-decimeter on a scale of continents) control points are normally defined in both space and time using global or space techniques, and are used for "lower-order" points to be tied into. The lower-order control points are normally used for engineering, construction and navigation.
Hexagon AB is a multinational industrial technology company. [6] Headquartered in Stockholm, Sweden, [4] and publicly traded on the Nasdaq Stockholm exchange, [7] the company since 2000 has had a particular focus on measuring technology [8] and geospatial tools and software. [4]
A surveyor's shed showing equipment used for geomatics. Geomatics is defined in the ISO/TC 211 series of standards as the "discipline concerned with the collection, distribution, storage, analysis, processing, presentation of geographic data or geographic information". [1]
The Geodimeter (acronym of geodetic distance meter) was the first optical electronic distance meter surveying instrument. [1] [2] It was originally developed for measuring the speed of light. [3] [4] It was invented in 1947 by Erik Osten Bergstrand and commercialized in 1953 by the AGA (Aktiebolaget Gasaccumulator) company of Sweden.
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