Technical Specifications


Model Bar Length Weight Certified Accuracy Long-term stability
SRS400 400mm (20") 3kg (7lbs) ±1.0 to 5.0 µm (40 to 200 µ") <10 µm
SRS1000 1000mm (40") 4kg (9lbs) ±1.0 to 5.0 µm (40 to 200 µ") <10 µm
SRS1500 1500mm (60") 5kg (11lbs) ±1.0 to 5.0 µm (40 to 200 µ") <10 µm
SRS2000 2000mm (80") 6kg (13lbs) ±1.0 to 5.0 µm (40 to 200µ") <10 µm

The Coefficient of Thermal Expansion (CTE) of the INORAsrs bars is -0.1µm/m/K, which compares favorably with the materials used in traditional artifacts as follows:

Nominal Tetrahedron Volume

Bar Size (mm) X (mm) Y (mm) Z (mm)
400 400 346 327
1000 1000 866 817
1500 1500 1299 1225
2000 2000 1740 1633