Podcast
Questions and Answers
What is the main source of cyclic error in the EDM measurement system?
What is the main source of cyclic error in the EDM measurement system?
- Crosstalk between the optical transmitter and receiver phase measurement system
- The mathematical model involving the reference signal and the signal back
- Electrical coupling between the reference signal and the measured signal (correct)
- The length of the measurement unit
How does a measurement of more than 50m impact the cyclic error in the EDM system?
How does a measurement of more than 50m impact the cyclic error in the EDM system?
- It reduces the error (correct)
- It fluctuates the error
- It increases the error
- It has no impact on the error
What is the nature of the cyclic error along the length of the measurement unit?
What is the nature of the cyclic error along the length of the measurement unit?
- It is often regarded as a sine curve (correct)
- It is a parabolic curve
- It is a cosine function
- It is a linear function
What can be said about the contaminating signal y3 in relation to the transmitted signal y1?
What can be said about the contaminating signal y3 in relation to the transmitted signal y1?
What happens when two waves of equal frequency are superimposed?
What happens when two waves of equal frequency are superimposed?
What does the mathematical model involving the reference signal and the signal back help explain?
What does the mathematical model involving the reference signal and the signal back help explain?
What are the three main instrumental errors mentioned in the text?
What are the three main instrumental errors mentioned in the text?
How is the scale of the measured distance obtained?
How is the scale of the measured distance obtained?
What are the two components of time mentioned in relation to scale correction?
What are the two components of time mentioned in relation to scale correction?
How is the long term component of time related to changes in the oscillator frequency?
How is the long term component of time related to changes in the oscillator frequency?
What can cause scale error apart from oscillators?
What can cause scale error apart from oscillators?
What type of error is caused by phase inhomogeneities due to inequalities in phase information?
What type of error is caused by phase inhomogeneities due to inequalities in phase information?
