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18 relations: Azimuth, Gunter's chain, Invar, Level staff, Levelling, Measurement, Plane table, Rangefinder, Ravine, Reticle, Satellite navigation, Shrub, Stadia mark, Surveying, Tacheometry, Telescope, Theodolite, Total station.
Azimuth
An azimuth (from the pl. form of the Arabic noun "السَّمْت" as-samt, meaning "the direction") is an angular measurement in a spherical coordinate system.
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Gunter's chain
Gunter's chain or the surveyor's chain (also known as Gunter’s measurement or surveyor’s measurement) is a distance measuring device used for land survey.
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Invar
Invar, also known generically as FeNi36 (64FeNi in the US), is a nickel–iron alloy notable for its uniquely low coefficient of thermal expansion (CTE or α).
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Level staff
A level staff, also called levelling rod, is a graduated wooden or aluminium rod, used with a levelling instrument to determine the difference in height between points or heights of points above a datum surface.
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Levelling
Levelling (British English) or leveling (American English; see spelling differences) is a branch of surveying, the object of which is to.
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Measurement
Measurement is the assignment of a number to a characteristic of an object or event, which can be compared with other objects or events.
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Plane table
A plane table (plain table prior to 1830) is a device used in surveying and related disciplines to provide a solid and level surface on which to make field drawings, charts and maps.
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Rangefinder
A rangefinder is a device that measures distance from the observer to a target, in a process called ranging.
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Ravine
A ravine is a landform narrower than a canyon and is often the product of streamcutting erosion.
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Reticle
A reticle, or reticule, also known as a graticule, is a pattern of fine lines or markings built into the eyepiece of a sighting device, such as a telescopic sight in a telescope, a microscope, or the screen of an oscilloscope, to provide references during visual examination.
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Satellite navigation
A satellite navigation or satnav system is a system that uses satellites to provide autonomous geo-spatial positioning.
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Shrub
A shrub or bush is a small to medium-sized woody plant.
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Stadia mark
Stadia marks, also called stadia lines or stadia hairs, are crosshairs on the reticle of a theodolite or other surveying instrument that allow stadiametric rangefinding.
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Surveying
Surveying or land surveying is the technique, profession, and science of determining the terrestrial or three-dimensional positions of points and the distances and angles between them.
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Tacheometry
Tacheometry (from Greek for "quick measure"), is a system of rapid surveying, by which the horizontal and vertical positions of points on the earth's surface relative to one another are determined without using a chain or tape, or a separate levelling instrument.
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Telescope
A telescope is an optical instrument that aids in the observation of remote objects by collecting electromagnetic radiation (such as visible light).
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Theodolite
A theodolite is a precision instrument for measuring angles in the horizontal and vertical planes.
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Total station
A total station (TS) or total station theodolite (TST) is an electronic/optical instrument used for surveying and building construction.
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