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In subtense bar method, horizontal angle subtended by two targets fixed on a horizontal bar at a known distance apart is measured at instrument station by odolite.


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Distance and elevation formulae for fixed hair method assuming the line of sight as horizontal and considering an external focusing type telescope is D = Ks + C. where C is ___

In subtense bar method, horizontal angle subtended by two targets fixed on a horizontal bar at a known distance apart is measured at instrument station by odolite.

The two targets are at a distance s apart, and each at s/2 from the centre, i.e. vertical axis. The horizontal angle α is measured carefully by means of a theodolite. Then what is the value of D in the subtense bar method?

In the subtense bar method

the horizontal angle subtended by two targets fixed on a horizontal bar at a known distance apart is measured at instrument station by theodolite.

Area Computation & Tacheometric Surveying

Surveying