Neper

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Neper

</dt>
A measure of power equal to one-half the Napierian logarithm (logarithm to the base e ) of the power ratio. 1 neper is equal to 8.686 decibels. </dd>
Under certain conditions the neper is a measure of the ratio of amplitudes of such physical quantities as voltage, current, particle velocities, and sound pressure. The neper is not commonly used in English-speaking countries. [[/a>|/a> ]]

References

This article is based on NASA's Dictionary of Technical Terms for Aerospace Use