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Table 2.
Uncertainties of the TSI measurements for the “Rad 10” mode.
| Parameters of the right channel | (ppm) | (Wm−2) |
|---|---|---|
| Wires heating effect C1 | 1.5 | 0.002 |
| Accuracy of the servo-system C2 | 1.2 | 0.002 |
| Infrared emission of the shutter C′3 | 39.0 | 0.053 |
| Infrared emission of the mirror C4 | 19.0 | 0.026 |
| Optical effects C5 | 110.0 | 0.150 |
| Absorption factor αeff,r | 190.0 | 0.259 |
| Precision aperture Ar at 20 °C | 117.0 | 0.159 |
| Thermal effects Δr | 30.0 | 0.041 |
| Thermo-mechanical effect Δ′r | 250.0 | 0.341 |
| Fixation of the aperture Δ″r | 250.0 | 0.341 |
| Thermo-mechanical sliding cos θ | 6.0 | 0.008 |
| Thermo-electrical non-equivalence ΔPo | 837.0 | 1.140 |
| Thermo-electrical non-equivalence KRad10 | 280.0 | 0.381 |
| Thermal radiative effects of the baffle | 13.0 | 0.018 |
| Electrical chains (general effects) | 732.6 | 0.998 |
| Electrical chains (transfer of calibration) | 175.4 | 0.239 |
| Electrical chains (ground parasitic resistance) | 284.2 | 0.387 |
| Doppler effect | 50.0 | 0.068 |
| Mean quadratic uncertainty (σ = 1) | 1272.6 | 1.733 |
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