Question

Difference between transit and non transit theodolite

Answer 1

A theodolite is a precision instrument that is used for measuring horizontal and vertical angles. Theodolites can rotate along their horizontal axis as well as their vertical axis. A transit is a surveying instrument that also takes accurate angular measurements. A theodolite may be either transit or non-transit.

In a transit theodolite, the telescope can be inverted in the vertical plane. Some types of transit theodolites do not allow the measurement of vertical angles.

The rotation in the vertical plane is restricted to a semi-circle in a non-transit theodolite.