Trigonometric Levelling & Tacheometry

Trigonometric Levelling

Trigonometric Levelling, Determination of elevation of object when its base is accessible, Determination of elevation of object when its base is not accessible, Determination of elevation of the object when the two instruments are not in the same vertical plane.

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

Surveying

Fundamentals Of Surveying (Part-1)

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2 August 2021

In fundamentals of surveying (part-1), we details analysis about surveying, classification of survey, principal of surveying, instruments used for various types of measurement.Etc

Surveying

Theory of Errors (Type of Error, Law’s of Weights, Probable Error, Error In Computed Result)

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22 October 2021

In theory of errors we details discuss theory of errors, occurrence of error, type of error, gross errors or mistakes, systematic or cumulative errors, accidental or random errors, precision, accuracy, true value, true error, most probable value (M.P.V), principle of least square, residual error, law’s of weights, probable error, error in computed result.