CE 134 Lecture Notes - Lecture 11: Theodolite
22 May 2016
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*take repeated angle measurements in order to be confident that measurements are correct. Theodolite- measures angles: old equivalent is the transit. Total station- combination of edm and theodolite, hence measures : angles (horizontal, vertical, distances (horizontal, vertical) *infrared and microwave waves used in edm instrument. V = velocity of electromagnetic energy (m/sec) f = modulated frequency of the energy (hertz=1 cycle/sec) The velocity of electromagnetic energy in a vacuum is 299,792,458 m/sec. Its speed is slowed somewhat in the atmosphere according to the following equation.
