Mitutoyo SURFTEST SJ-410 - Page 566

No. 99MBB765A
23-16
• When the PC75 filter is selected
Traversal length (When PC75 filter is selected)
Data from the pre-travel length and the post-travel length are calculated assuming that
their lengths are ℓ.
• When measuring with the unfiltered profile (P)
Traversal length (when measuring with the unfiltered profile (P)
TIP
• If measuring the roughness profile with pre-travel and post-travel lengths disabled, then
the calculation is performed with the pre-travel and post-travel data folded (nulled).
■ Traversal length for short approach length measurement
• For normal measurement
Approach travel
0.5 mm (0.019 in)
Pre-travel
ℓ
Evaluation length
ℓ
×
n
(ℓ=λc)
Traverse length
Normal measuring position
Origin
Post-travel
ℓ
Approach travel
0.5 mm (0.019 in)
Evaluation length
ℓ×n
Traverse length
Normal measuring position
Origin
Approach travel
0.5 mm (0.019 in)
Evaluation length
ℓ×n
Origin
Pre-travel
Post-travel
Normal measuring position
Traverse length