| Calibrated Device |
Long Gauge Block
|
|---|---|
| Range |
(1) 100 mm to 600 mm (Comparison method)
(2) 100 mm to 1000 mm (Interferometry method) |
| Uncertainty |
(1) 1.98 × [53.22 + (324L)2]1/2 nm
(2) [742 + (365L)2]1/2 nm L: length of long gauge block in m
|