A theodolite measures angles and axis needed for site surveying. The horizontal and vertical angles are measured using a theodolite. A theodolite is actually a mounted telescope used in building.
The surveyor set up the theodolite on the tripod to measure the angles of elevation and depression for the construction project. After carefully calibrating the instrument, he took precise readings to ensure the building's foundation would be perfectly aligned. The theodolite proved essential for mapping out the site accurately.
To check vertical deviation of tower using theodolite, measure the distance between the target and the point of burst in the plane. There must be a normal line of position along a line perpendicular to the lateral deviation.
To operate a Theodolite, first drive a surveyor's nail into the ground where Theodolite will be set up. Second, set up tripod legs and gently place the instrument on the mounting plate then screw in the mounting knob beneath the instrument. Finally, adjust the vertical plummet of the Theodolite.
A theodolite is an instrument that is used in archaeoastronomy. To change the face for taking angle measurements when using a theodolite you must turn the telescope by 180 degrees.
Father of Theodolite
methods ensuring that a small rectangular building has been set out correctly
To use the Microptic Theodolite No. 1, first set it on a stable tripod and ensure it is level using the built-in bubble level. Adjust the telescope to your eye level and focus it on the target by rotating the eyepiece. Align the crosshairs with the target and read the angles on the horizontal and vertical circles, ensuring to record the measurements accurately. After use, carefully pack the device to prevent damage.
Face left and face right are taken to reset the posoition of the theodolite so additional measurements can be raken
*find a theodolite or total station *check for collimation *check theodolite vertical axis *set up the theodolite a distance away from the foot of the tower, or closer but using a diagonal eye piece *use left face to bisect bottom point and clamp the horizontal plate *check the tower zenith transit and use the right face to bisect the bottom point and do as explained above *dont forget to record readings of every stage.
advantage and disadvantage of theodolite
Transit and non-transit theodolite.
principle of theodolite is based on the principle of trigonometry.