3.3.10.3. Horizontal collimation (Line of sight) error

Try these first

1. 1.

   What is horizontal collimation error?

   Hint

   Think about how alignment affects measurements.

2. 2.

   How can taking readings from both faces of the Total Station help?

   Hint

   Consider how averaging works in math.

3. 3.

   What causes horizontal collimation error?

   • Improper alignment of the line of sight
   • Incorrect temperature
   • Bad weather

   Hint

   Consider the role of alignment.

4. 4.

   True or False: Horizontal collimation error can be corrected by averaging readings from both sides of the Total Station.

   • True
   • False

   Hint

   Think about how averages work.

5. 5.

   During a surveying event, a Total Station showed a deviation of 0.7° in horizontal readings from the expected value. If the readings retrieved at steep angles show an average error of 2.1m over 100m, calculate the corrected measurement.

   Hint

   Use trigonometric functions for conversions.

6. 6.

   A surveyor consistently observes a horizontal collimation error affecting measurements across multiple terrains. Discuss how frequent calibration might influence the survey results over varying environments.

   Hint

   Consider how conditions alter readings.