Theodolite Parts And Functions Pdf

theodolite parts and functions pdf

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Published: 23.12.2020

The traditional use has been for land surveying , but they are also used extensively for building and infrastructure construction , and some specialized applications such as meteorology and rocket launching. It consists of a moveable telescope mounted so it can rotate around horizontal and vertical axes and provide angular readouts.

Theodolites are utilized primarily for looking over applications, and have been adjusted for particular purposes in fields like metrology and rocket dispatch innovation. A cutting edge theodolite comprises of a mobile telescope mounted inside two opposite tomahawks the flat or trunnion hub, and the vertical hub. At the point when the telescope is pointed at an objective article, the edge of every one of these tomahawks can be estimated with incredible exactness. Theodolites are used in the construction industry and for mapping applications.

What Is Transit Theodolite | Theodolite Parts

Distance between two points in a small area is measured in chain survey. Horizontal angles between stations and objects are obtained in a compass survey with an accuracy of half a degree. Plane table survey helps in the plotting work of drawings in the field itself while simultaneously measuring the distances and viewing the direction of the location of objects. Level gives only the elevations of various ground point locations. However, all these observations are limited for covered area, accuracy, time, sophistication, money, and use of many other latest devices. Theodolite is widely used to obtain both horizontal and vertical angles between various station points at different elevations with the highest precision 1 to 20 seconds.

Theodolite is a popular surveying instrument. It is a measurement tool with which we can find horizontal and vertical angles. It is an electronic device and has sophisticated parts. To learn theodolite surveying a surveyor must know all the parts of the theodolite machine. In the following article, major parts of a theodolite are discussed to make the device well familiar for the surveyor.

Introduction to theodolite and its parts.

There are two different kinds of theodolites: digital and non digital. Non digital theodolites are rarely used anymore. Digital theodolites consist of a telescope that is mounted on a base, as well as an electronic readout screen that is used to display horizontal and vertical angles. Digital theodolites are convenient because the digital readouts take the place of traditional graduated circles and this creates more accurate readings. Like other leveling instruments, a theodolite consists of a telescope mounted on a base. The telescope has a sight on the top of it that is used to align the target.

Parts of a Theodolite

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All About Theodolites


Eurico G.


It is important to know about theodolite parts and their functions before using it to minimize errors during theodolite surveying. Theodolite PDF Downloads. ✓.