dumpy-level-vs-auto-level

 

Dumpy level and auto level are two different leveling instruments used in surveying. The main differences between dumpy level and auto level are given below.

  Dumpy Level Auto Level
1In the dumpy level survey, staff reading need to be adjusted as inverted level staff reading is seen in the eye piece.In the auto level, no adjustment for staff reading is required as the actual reading is seen from the eye piece. 
2In the dumpy level, to level the bubble, one has to keep bubble parallel to two leveling screws and then right angle to the third screw.In the auto level, the bubble can be adjusted from any side and any angle with any 3 screws available.
3Line of sight is manually adjusted in dumpy level.The auto level has an internal compensator mechanism which automatically adjusts the line of sight.
4It difficult to make an accurate measurement with dumpy level.The measurement accuracy of the auto level is higher than the dumpy level. 

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