Filter
Top Products
LaserSpeed 8000-3 Instruction Handbook
System Overview
Part No. 93463 / Drawing No. 0921-01561 Page 15 of 221 Revision A (Sep 2007)
κ
Material Surface
Measurement Region
d
Resultin
g
Electrical Signal
with Frequency ( )f
t
Side View
Material Movement
Top View
Fringe distance (d) is a function of laser wavelength
(λ) and beam angle (κ):
κ
λ
sin2
=d
Period is the inverse of frequency:
f
t
1
=
Velocity is distance divided over time:
t
d
v =
Velocity is integrated to find Length
∫
⋅=
T
dtvL
0