BeginnerTopic 21 of 112Civil & Structural
Theodolite and total station
Instruments that measure horizontal and vertical angles and distances.
In depth
Theodolites measure horizontal and vertical angles; total stations add electronic distance measurement and data recording to give coordinates directly. Face-left and face-right observations cancel instrument errors. Used for traverses, setting out, deformation monitoring.
Key points
- Prism and reflectorless modes
- Traverse adjustment
- Accuracy 1–5 arc seconds
ExampleA total station sets out a bridge pier to within millimetres.
What is Theodolite and total station?
Instruments that measure horizontal and vertical angles and distances.
Why is it important to understand theodolite and total station?
Theodolites and total stations measure angles and distances electronically, which speeds up surveys and improves accuracy.
What can a total station measure?
Horizontal and vertical angles and slope distances, which give three-dimensional coordinates of points.
What is the difference between a theodolite and a total station?
A theodolite measures only angles, while a total station adds electronic distance measurement, so it gives coordinates directly.
How is Theodolite and total station used in practice?
Typical applications include setting out a curved road alignment with a total station, measuring the position of a bridge pier from a control point and capturing the shape of a building for a survey drawing.
What should I learn before Theodolite and total station?
Study "Levelling" first (topic 20 of 112 in Civil & Structural). It covers the groundwork this topic builds on.
What are the key points of Theodolite and total station?
Prism and reflectorless modes. Traverse adjustment. Accuracy 1–5 arc seconds.
Can you give an example of Theodolite and total station?
A total station sets out a bridge pier to within millimetres.
What comes after Theodolite and total station?
The next topic is "GPS and GNSS surveying", which builds directly on this one.
How difficult is Theodolite and total station?
It is classed as Beginner in Civil & Structural (topic 21 of 112). It is an entry-level topic. It relies only on basic school mathematics and the ideas introduced earlier in this discipline.