Open Access
Table 1
Uncertainty budget of the radiant flux of the lamp at several wavelengths.
| Source of uncertainty | 350 nm | 400 nm | 500 nm | 600 nm | 700 nm | Unit |
|---|---|---|---|---|---|---|
| Reference lamp value | 1.80 × 10−22 | 1.96 × 10−20 | 3.55 × 10−16 | 1.87 × 10−15 | 4.50 × 10−17 | (W∙nm−1)2 |
| Reference lamp drift | 1.70 × 10−9 | 2.46 × 10−9 | 2.25 × 10−7 | 6.75 × 10−8 | 3.56 × 10−10 | (W∙nm−1)2 |
| Repeatability of reference lamp | 1.56 × 10−11 | 1.39 × 10−10 | 7.37 × 10−8 | 6.94 × 10−8 | 5.72 × 10−10 | (W∙nm−1)2 |
| Repeatability of the lamp measured | 8.58 × 10−11 | 1.34 × 10−10 | 1.71 × 10−9 | 6.43 × 10−10 | 9.72 × 10−11 | (W∙nm−1)2 |
| Repeatability of aux. lamp when ref. lamp is in sphere | 7.94 × 10−12 | 1.48 × 10−11 | 1.30 × 10−9 | 3.80 × 10−10 | 6.07 × 10−12 | (W∙nm−1)2 |
| Repeatability of aux. lamp when the lamp measured is in sphere | 3.02 × 10−11 | 1.97 × 10−11 | 3.24 × 10−9 | 4.03 × 10−10 | 4.22 × 10−12 | (W∙nm−1)2 |
| The current of reference lamp | 2.74 × 10−16 | 2.74 × 10−16 | 2.74 × 10−16 | 2.74 × 10−16 | 2.74 × 10−16 | (W∙nm−1)2 |
| The current of the lamp | 6.77 × 10−16 | 6.77 × 10−16 | 6.77 × 10−16 | 6.77 × 10−16 | 6.77 × 10−16 | (W∙nm−1)2 |
| Linearity of spectrometer | 2.07 × 10−13 | 2.07 × 10−13 | 2.07 × 10−13 | 2.07 × 10−13 | 2.07 × 10−13 | (W∙nm−1)2 |
| Wavelength accuracy of the spectrometer | 1.05 × 10−14 | 1.05 × 10−14 | 1.05 × 10−14 | 1.05 × 10−14 | 1.05 × 10−14 | (W∙nm−1)2 |
| Straylight of the spectrometer | 2.07 × 10−13 | 2.07 × 10−13 | 2.07 × 10−13 | 2.07 × 10−13 | 2.07 × 10−13 | (W∙nm−1)2 |
| Spatiality sensitivity of the spectrometer | 5.03 × 10−13 | 5.03 × 10−13 | 5.03 × 10−13 | 5.03 × 10−13 | 5.03 × 10−13 | (W∙nm−1)2 |
| Ambient sensitivity of the spectrometer | 9.52 × 10−14 | 9.52 × 10−14 | 9.52 × 10−14 | 9.52 × 10−14 | 9.52 × 10−14 | (W∙nm−1)2 |
| Uncertainty (k = 2) | 8.59 × 10−5 | 1.05 × 10−4 | 1.10 × 10−3 | 7.44 × 10−4 | 6.44 × 10−5 | (W∙nm−1) |
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