For checking two-dimensional instruments for straightness and accuracy. The patterns are produced in vacuum deposited chrome on glass. Lines are every 10mm with a central 20mm subdivided in 1mm rulings.
Specifications
|
PGR 100 |
Overall Divided Area |
100 x 100mm |
Glass Size |
120 x 120mm |
Glass Thickness |
6mm |
Line Width |
0.008mm |
Linear Straightness |
0.002mm |
Angular Accuracy |
within 5 seconds |