Trigonometric Levelling & Tacheometry
Tacheometry, Instrument Used In Tacheometry – Tacheometer, Stadia Rod. Different Systems of Tacheometric Measurement- Stadia System (Fixed hair system, Movable hair system), Tangential System, Subtense Bar System, Theory of Tacheometer, Distance and Elevation Through Tacheometer- When a Staff Is Vertical, & When a Staff Is Perpendicular to Line of Sight.
Topics
Trigonometric Levelling (Determination of Elevation of Object Of Various Situation)
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1 October 2021
In trigonometric levelling, we details discuss about trigonometric levelling, determination of elevation of object when its base are accessible & not accessible & when the two instruments are not in the same vertical plane.
Contouring (Contour Interval, Properties & Use of Contour Lines, Ridge & Valley Line, Vertical & Overhanging Cliff).
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20 September 2021
In contour, we details discuss about use of contour, contour interval, properties of contour lines, ridge & valley line, overhanging cliff, vertical cliff. Etc.