Table 1.
Quantitative Validation of the OCT Thickness Measurement of the Gauge Blocks
| Length | Block 2 | Block 3 | Block 4 | Block 5 | Block 6 | Block 7 | Block 8 | Block 9 | Block 10 |
|---|---|---|---|---|---|---|---|---|---|
| Manufacturer’s specification (inch) | 1 | 0.9 | 0.8 | 0.75 | 3 | 2 | 0.95 | 0.85 | 0.7 |
| Measured by a micrometer (mm) |
25.4000 ±0.0000 |
22.8600 ±0.0000 |
20.3267 ±0.0058 |
19.0533 ±0.0058 |
76.2033 ±0.0058 |
50.8000 ±0.0000 |
24.1300 ±0.0000 |
21.5900 ±0.0000 |
17.7800 ±0.0000 |
| Measured by OCT (mm) |
25.3858 ±0.0063 |
22.8596 ±0.0065 |
20.3321 ±0.0059 |
19.0636 ±0.0065 |
76.1965 ±0.0059 |
50.7896 ±0.0048 |
24.1215 ±0.0039 |
21.6021 ±0.0069 |
17.7946 ±0.0137 |