1.4. Example 1.22: Calculation of Tacheometric Constants

Try these first

1. 1.

   What does 'D' represent in the tacheometric formula?

   Hint

   Think about what we are trying to calculate in tacheometry.

2. 2.

   What are the two constants used in the tacheometry?

   Hint

   Recall the formula D = KS + C and identify the constants.

3. 3.

   What is 'K' in the tacheometry formula?

   • A constant offset
   • The distance factor
   • A type of measurement

   Hint

   Consider what multiplication factor affects the distance measurement.

4. 4.

   True or False: The constant 'C' accounts for the physical height of the staff.

   • True
   • False

   Hint

   Focus on the definition of 'C' and its role in the formula.

5. 5.

   Calculate the values of 'K' and 'C' if given the horizontal distances of 30 m and 80 m, with stadia readings of 1.5, 2.3, and 1.8, 2.2 respectively.

   Hint

   It's crucial to perform algebraic manipulations correctly!

6. 6.

   Explain how any error in the stadia readings would impact the calculation of distance using calculated K and C values.

   Hint

   Reflect on the concept of feedback from reading errors.