Table 2.
Precision of the VerteTrack RIH displacement
| Wedge level | RIH displacement relative to table-topa (mm) | 95%CI (mm) | SD | CV |
|---|---|---|---|---|
| d0 (landing point) | 60.03 | 60.01 to 60.05 | 0.04 | 0.01% |
| d1 (highest level) | 60.02 | 60.02 to 60.02 | 0.01 | 0.00% |
| d2 | 48.30 | 48.29 to 48.31 | 0.01 | 0.00% |
| d3 | 36.13 | 36.12 to 36.13 | 0.01 | 0.01% |
| d4 | 23.82 | 23.82 to 23.83 | 0.01 | 0.01% |
| d5 (lowest level) | 12.08 | 12.00 to 12.16 | 0.14 | 0.32% |
CV Coefficient of variation, RIH Rolling indenter head, SD standard deviation
aAverage of 10 measurements at each displacement. All displacements were measured by the string potentiometer relative to the table-top (TE Connectivity, USA, Resolution = 0.020 mm, accuracy ±0.010 mm)