- 44

- 3

- Summary
- What happens if the phase shift is over 2pi?

I've read that there are laser rangefinders who measure the distance not only by ToF (time-of-flight) method but also by phase-shift.

I think I can understand that. Depending how much the phase of the input pulse shifts from the output pulse we can translate it into how much distance the pulse has traveled.

But a question immediately arose: what happens if the phase shift is over 2pi?

I think I can understand that. Depending how much the phase of the input pulse shifts from the output pulse we can translate it into how much distance the pulse has traveled.

But a question immediately arose: what happens if the phase shift is over 2pi?