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4700
4700
Fig.6-4 D-P filter
a
=
_
=
0
l
Ra
y
i
y
v
z
=
_
V
=
+
=
5
=(
)
_
=
_
0
R
t
l
y
i m a x
y
vmax
l
l
Traversing length
l
l/2
l/2
l
l
l/2
l/2
l
n
l
n
l
n
l=sampling length
n=number of sampling length
l
n=evaluation length
l
n
Approach
length
Pre-travel
length
Evaluation
length
Traversing length
Traversing length
Traversing length
Post-travel
length
Approach
length
Pre-travel
length
Post-travel
length
Approach
length
Pre-travel
length
Approach
length
Evaluation
length
Evaluation
length
Evaluation
length
Origin
Normal measuring
position
Origin
Normal measuring
position
Origin
Normal measuring
position
Origin
Normal measuring
position
Fig.6-1 RC filter
Fig.6-2 PC-RC filter
Fig.6-3 GAUSS filter
Fig.7
4700
