Temporary Adjustment of SURVEYING Instrument in Civil Engineering

✔ Vk on July 01, 2023 0 Comment

Temporary Adjustment of SURVEYING Instrument in Field

  • The adjustments to be made at every setting of the instrument are called temporary adjustments.
  • Following are the five temporary adjustments are required:
  • 1. Setting up: Tripod stand is set on the ground firmly so that its top is at a convenient height.
  • 2. Centering: It is done to place the vertical axis exactly over the station mark
  • 3. Levelling: The levelling is done to make the vertical axis of the instrument truly vertical or to make horizontal plate truly horizontal
  • 4. Focusing the eye piece: The eye piece is focused to make the cross hairs distinct and clear
  • 5. Focusing the objective: This is done to bring the image of the object in plane of the cross hairs


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