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Qualification de IONIC, instrument de recombinaison ...

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tel-00010396, version 1 - 4 Oct 2005<br />

Annexe B<br />

Conversion <strong>de</strong> la transmission en<br />

pertes en dB<br />

Tab. B.1 – Table <strong>de</strong> correspondance entre le facteur <strong>de</strong> transmission et les pertes équivalentes<br />

exprimées en dB. On rappelle que la formule est P (dB) = −10 log (T ).<br />

Tansmission Pertes (dB)<br />

0.99 0.04<br />

0.95 0.22<br />

0.89 0.51<br />

0.85 0.71<br />

0.80 0.97<br />

0.75 1.25<br />

0.70 1.55<br />

0.63 2<br />

0.56 2.52<br />

0.50 3<br />

0.45 3.47<br />

0.40 3.97<br />

0.31 5.01<br />

0.25 6.02<br />

0.20 6.99<br />

0.15 8.24<br />

0.10 10<br />

0.05 13.0<br />

0.01 20<br />

221

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