Biomedical Engineering Reference
In-Depth Information
FIGURE 2-38
Line-scanned
triangulation-based
line scanner.
FIGURE 2-39
Operational
principles of a
generic time-of-flight
sensor.
converted to an electrical signal that can be filtered to remove extraneous noise before
being amplified and detected.
The time between the transmission of a pulse and the reception of an echo is used
to provide range. Because the round-trip time is measured, there is a factor of two in the
formula
R
=
v
T
(2.32)
2
