Tacheometry: Stadia Essentials

Fast distance and elevation measurement, distilled into eight pages.

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About this course

Tacheometry lets a surveyor fix horizontal distance and elevation from a single sighting. This lecture covers the stadia, tangential and subtense-bar methods, then builds the working equations for horizontal and inclined sights — including the upward and downward cases that trip students up in exams.

Stadia, tangential and subtense-bar methods compared
D = 100 S cos²θ and V = 100 S cosθ sinθ explained
Reduced-level computation for upward and downward sights

Syllabus

1 document · 8 pages · English

01
Lecture 1 · Tacheometry
PDF · 8 pages
- Stadia, tangential and subtense-bar methods
- Horizontal distance D = 100 S cos²θ
- Vertical component V = 100 S cosθ sinθ
- Reduced levels with upward and downward inclined sights