Short note on Theodolite and important parts of a Theodolite
It is an instrument which is used mainly for accurate measurement of horizontal and vertical angles up to 10′ or 20′. Theodolite is used for following purposes: to measure horizontal angle and vertical angles. Theodolite is of two types: (1) Transit theodolite (2) Non-transit theodolite. (1) Transit Theodolite: In this...