What does the Total Station do?
A Total Station is an electronic/optical instrument used in modern survey and building construction that uses Electronic Transit Theodolite in conjunction with Electronic Distance Meter (EDM). It is also integrated with microprocessor, electronic data collector and storage system.
- This instrument is used to measure slope distance of object to the instrument, horizontal angles and vertical angles.
- This Microprocessor unit enables for computation of data collected to further calculate the horizontal distance, coordinates of a point and reduced level of point.
- Data collected from Total Station can be downloaded into computer/laptops for further processing of information.
- Total stations are mainly used by land surveyors and civil engineers, either to record features as in Topographic Surveying or to Set-Out features (such as Roads, Houses or Boundaries), Co-ordinate Geometry.
- They are also used by archaeologists to record excavations and by Police, Crime Scene Investigators, Private Accident Re-constructionist and Insurance Companies to take measurements of scenes.
Understanding the Auto-Level
An Auto-Level (Automatic Levelling Instrument) is an optical instrument that can be used to establish or verify points on the same horizontal plane, and it has an internal mechanism that eliminates variation and inaccuracy from measurements. It is used in surveying for Roads and Building floor/ceiling slabs with a Vertical Surveying Levelling Staff to measure height differences and to transfer, measure and set heights.
The Theodolite explained
A Theodolite is a precision instrument used for measuring angles both horizontally and vertically, geodesy, and triangulation. Theodolites can rotate along their horizontal axis as well as their vertical axis. Theodolites have a lot in common with Transits. A Transit is a Surveying Instrument that also takes accurate angular measurements.
The Theodolite is essentially the most accurate instrument to measure the angular measurement (horizontal and vertical angles) to work this out. But they can also be used for locating points on a line, prolonging survey lines, geodetic surveying and finding differences in elevation.
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