3.2.1. Principle of EDM

Try these first

1. 1.

   What is the primary measurement technique used by EDM?

   Hint

   Think about the transmission and reflection of signals.

2. 2.

   What device serves as the receiver for the EDM signal?

   Hint

   This device is also known as the reflector.

3. 3.

   What does EDM primarily measure?

   • Angles
   • Distance
   • Height

   Hint

   Think about the main function of the instrument.

4. 4.

   True or False: The phase difference measurement method increases the ambiguity in measurements.

   • True
   • False

   Hint

   Consider the purpose of phase measurement.

5. 5.

   You are given n = 5 wavelengths, λ = 3 m, and p = 0.50 m. Calculate the total distance using the phase shift formula.

   Hint

   Apply the formula step-by-step, ensuring you multiply, add, and halve correctly.

6. 6.

   Discuss two sources of error in measuring distances using EDM, and suggest methods to minimize these errors.

   Hint

   Consider external factors versus procedural issues.