Search the courses, subjects, tracks, games and features, or jump straight to a page.
2 cards from this section. Quick, good the night before a test.
What does EDM stand for?
Think about what technology is used for measuring distances.
What is the purpose of a reflecting prism in EDM?
It's what's hit by the signal from the EDM.
What principle does EDM operate on?
Think about how distance is calculated.
True or False: The main application of EDM is in measuring short distances.
What does EDM allow for compared to manual measurement methods?
An EDM measures a distance with an elapsed time of 0.002 seconds for a laser signal. How far is the object, assuming the speed of light is 300,000 km/s?
Use the distance formula provided during the lesson.
If atmospheric conditions are causing an error of 10 mm over a distance of 1000 m, how would you calibrate your EDM to ensure accuracy?
Consider how calibration can correct systematic errors.
4 more questions in this section. Enroll free to practise them all.
Enroll free