Table 1.
Precision of VerteTrack applied load
| Indenter head loading | LoadVerteTracka (N) | 95%CI (N) | SD | CV |
|---|---|---|---|---|
| RIH only | 16.557 | 16.470 to 16.645 | 0.045 | 0.27% |
| RIH + 1 plate | 27.757 | 27.701 to 27.814 | 0.029 | 0.10% |
| RIH + 2 plates | 38.662 | 38.589 to 38.735 | 0.037 | 0.10% |
| RIH + 3 plates | 49.583 | 49.479 to 49.688 | 0.053 | 0.11% |
| RIH + 4 plates | 60.687 | 60.592 to 60.783 | 0.049 | 0.08% |
| RIH + 5 plates | 71.461 | 71.420 to 71.502 | 0.021 | 0.03% |
CV Coefficient of variation, RIH Rolling indenter head, SD standard deviation
aAverage of 10 measurements at each load. All loads measured with digital scale (OHAUS, model TS4KD: Resolution = 0.1 g, accuracy ±0.07 g. Equivalent to resolution = 0.001 N, accuracy ±0.0007 N)