3.2. Electronic Distance Measurement (EDM) Devices

Try these first

1. 1.

   What is EDM?

   Hint

   Think about the function of distance measurement.

2. 2.

   What is a reflecting prism?

   Hint

   Consider its role in distance measurement.

3. 3.

   What does EDM stand for?

   • Electronic Distance Measurement
   • Environmental Distance Measurement
   • Energy Distance Measurement

   Hint

   Identify the full form of the acronym.

4. 4.

   True or False: The EDM can measure distances with an accuracy of 1 in 1000 to 1 in 10000.

   • True
   • False

   Hint

   Think about the maximum accuracy discussed in the section.

5. 5.

   You have an EDM that measures a distance of 1000 meters with a known error rate due to temperature. If the temperature drops, increasing the measurement error to ±10 mm/km, what will be your new estimated distance?

   Hint

   Consider how the error scales with distance.

6. 6.

   What factors would you consider when setting up an EDM in a forested area where prisms are used extensively? Discuss strategies to mitigate potential errors.

   Hint

   Think about visibility and environmental impacts.