The theodolite is used to measure horizontal and vertical angles to target points.
From the en.wikipedia.org
Directional control was passed from one theodolite to the one next to the missile.
From the en.wikipedia.org
Horizon altitudes can be measured with a theodolite or a clinometer.
From the en.wikipedia.org
I only take measurements and do angle work using a theodolite.
From the books.scoop.co.nz
The azimuth is usually measured using a theodolite or a compass.
From the en.wikipedia.org
Everyone watches the entire time, but we trade off between recording data and working the theodolite.
From the scientistatwork.blogs.nytimes.com
This aircraft was fitted with a photo-theodolite and powerful light sources for the optical sensors.
From the en.wikipedia.org
In this work the odometer and the dioptra, an apparatus which resembles the theodolite, are described.
From the en.wikipedia.org
Here I am measuring the strength of the earth's horizontal magnetic field using a specially-adapted theodolite.
From the eadt.co.uk
More examples
A surveying instrument for measuring horizontal and vertical angles, consisting of a small telescope mounted on a tripod
A theodolite is a precision instrument for measuring angles in the horizontal and vertical planes. Theodolites are mainly used for surveying applications, and have been adapted for specialized purposes in fields like meteorology and rocket launch technology. ...
An optical instrument used to track the motion of a pilot balloon, or pibal, by measuring the elevation and azimuth angles.
(also "optical transit"): a transit with accurate optical readout of vertical and horizontal angles.
An instrument which, superseding the circumferentor and graphometer, is used for general surveying purposes and by naval hydrograghers.
An instrument used in precise surveying consisting of an alidade which is equipped with a telescope, a leveling device, and an accurately graduated horizontal circle. A theodolite may also have an accurately graduated vertical circle.
(2h)[O], are held to DS eye with DH in front of NDH as if looking through a theodolite (surveying scope) and DH is pulled forward once + [3] modified to mimic the three legs of a tripod strike FT against the palm of [B], PO up, FO away.
A laser leveling instrument commonly used to establish correct depth of foundations, levels of excavations, and slab formwork.
A device for determining altitude by measuring both elevation and azimuth angles. More accurate than a simple inclinometer, which measures only the elevation angle.