Chapter: Specifications
20 M16-16905-EN
Table 4 on page 20 contains specifications for all lenses when using the dot-based
method for transverse strain.
Table 5 on page 20 contains specifications for the 16 mm lens when using the edge-
based method for transverse strain.
Table 4. Dot-based method
Lens focal length (mm)
35 16 9 6
Axial field of view (mm) 130 310 560 840
Transverse field of view (mm) 16 40 70 110
Minimum axial gauge length (mm) 5 6 12 15
Minimum transverse gauge width
(mm)
561215
AVE2 resolution (μm) 0.5 0.5 1.5 3.0
AVE2 measurement accuracy
(axial and transverse) (μm) (the
greater of the two listed)
±1 or ±0.5% of reading, whichever is greater
Recommended dot diameter
(mm)
1-3 2-4 3-6 3-6
Table 5. Edge-based method - 16 mm lens only
Parameter Value
Axial field of view (mm) 205
Transverse field of view (mm) 40
Minimum axial gauge length (mm) 25
Minimum transverse gauge width (mm) 12.5
AVE2 resolution (μm) 0.5
AVE2 axial measurement accuracy (μm) ±1 or ±0.5% of reading, whichever is
greater
AVE2 transverse measurement accuracy (μm) ±3 or ±1% of reading, whichever is
greater
Recommended dot diameter (mm) 2-4
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