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The rod, perch, or pole (sometimes also lug) is a surveyor's tool [ 1 ] and unit of length of various historical definitions. In British imperial and US customary units, it is defined as 16+1⁄2 feet, equal to exactly 1⁄320 of a mile, or 5+1⁄2 yards (a quarter of a surveyor's chain), and is exactly 5.0292 meters.
18 sty 2010 · A rod (sometimes known as a pole) is a measurement of 16.5 feet. Each rod is comprised of 25 links. A two-pole chain is twice the length of a rod, or 16.5 feet. Likewise, a four-pole chain, which is also known as a surveyor’s chain, measures 66 feet (or 100 links).
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 vertical datum.
A surveyor ’s rod is extremely useful in surveying work as it allows surveyors to measure height differences and distances between two or more objects or points. This can be used to calculate the slope and gradient of a piece of land, which is important in construction and engineering projects.
12 lip 2024 · A rod of land is used as a unit of length in surveying to measure distances. It is equal to 16.5 feet or 5.5 yards. Surveyors commonly use rods to measure land boundaries and areas.
The 66-foot (20.1 m) chain is divided into 100 links, usually marked off into groups of 10 by brass rings or tags which simplify intermediate measurement. Each link is thus 7.92 inches (201 mm) long. A quarter chain, or 25 links, measures 16 feet 6 inches (5.03 m) and thus measures a rod (or pole). Ten chains measure a furlong and 80 chains ...
The rod, perch, or pole (sometimes also lug) is a surveyor's tool and unit of length of various historical definitions. In British imperial and US customary units, it is defined as feet, equal to exactly of a mile, or yards (a quarter of a surveyor's chain), and is exactly 5.0292 meters.
