Table 5.
Transmittance, reflectance and absorbance values of each oil sample for the central wavelengths of the RGB sensor.
| Oil Sample | λ = 460 nm (Blue Colour) |
λ = 530 nm (Green Colour) |
λ = 614 nm–616 nm (Red Colour) |
||||||
|---|---|---|---|---|---|---|---|---|---|
| T [%] | R [%] | A | T [%] | R [%] | A | T [%] | R [%] | A | |
| Kluber (Fresh) |
88.36 | 5.84 | 0.0534 | 90.35 | 6.14 | 0.0437 | 91.26 91.29 |
6.16 6.17 |
0.0393 0.0393 |
| Cepsa (Fresh) |
88.27 | 6.46 | 0.054 | 90.98 | 6.8 | 0.0409 | 91.91 91.89 |
6.81 6.8 |
0.0366 0.0368 |
| Motor (Degraded) |
0.58 | 4.59 | 2.2363 | 4.16 | 4.59 | 1.3799 | 12.95 13.19 |
4.72 4.71 |
0.8868 0.879 |
| Beslux (Degraded) |
0 | 4.02 | 4.9848 | 0.02 | 3.91 | 3.7486 | 3.01 3.23 |
3.81 3.81 |
1.5348 1.5019 |
| Kluber (Degraded) |
0 | 3.29 | 5.0236 | 0.66 | 3.33 | 2.1821 | 10.88 11.34 |
3.34 3.34 |
0.9636 0.9455 |