Surveying

  • Set Up a Total Station to Measure

    Set Up a Total Station to Measure This is a step-by-step guide on how to set up your total station or theodolite over a point and accurately level it.  Following this procedure is the quickest way to set up your…

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  • Methods of Levelling

    Methods of Levelling The following methods are used to determine the difference in elevation of various points: Barometric levelling Hypsometric levelling Direct levelling and Indirect levelling. Barometric Levelling This method depends on the principle that atmospheric pressure depends upon the…

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  • Factors affecting the Measuring Procedure

    Factors affecting the measuring procedure Every operation in a measurement procedure is a possible error source and as such requires careful consideration in order to assess the effect on the final result. (1) Pointing and focusing It can be shown…

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