Vernier transit theodolite is an equipment designed to meet the requirements of surveyor, mining engineer and civil engineers for high grade instruments giving a maximum portability. The basic function of theodolite is to measure vertical and horizontal angles. This equipment is ideal for work above or below the ground.

Materials used for making Vernier Theodolite
The instrument is usually made of brass and gun metal for convenience in operation and the ability to withstand continuous usage under all conditions without effecting the accuracy or adjustment.

Features of Vernier Transit Theodolite

Theodolite is a compact instrument having a fully enclosed design. Common features of the instrument are:

• It is rigidly mounted on a base plate.
• There is a telescope installed on the horizontal axis, which is of internal focusing type and is reversible in both horizontal and vertical scales.
• The instrument is provided with standard accessories in teak wood box with aluminium telescopic tripod stand.

Theodolite are usually of two types:

• Electronic
• Digital & Optical

Function of Theodolite

There are many different functions of theodolite. Some of them are:

• The basic function of theodolite is to measure vertical and horizontal angles. This requires proper leveling of the instrument.
• They are very useful in precision surveys, including geodetic surveys.
• The instrument is also capable of extending a straight line by transiting the telescope and to line intermediate points along a line.

Application

There are various application of them are:

• Civil Engineering
• Mining
• Geophysical Analysis
• Surveying
• Research & Development
• Construction
• Machine Control & Positioning