# Difference between revisions of "Dictionary:Logarithmic decrement"

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The natural logarithm of the ratio of the amplitudes of two successive cycles of a harmonic event. Where the amplitude decay is because of absorption, the logarithmic decrement can be related to ''Q'' and to the absorption coefficient. | The natural logarithm of the ratio of the amplitudes of two successive cycles of a harmonic event. Where the amplitude decay is because of absorption, the logarithmic decrement can be related to ''Q'' and to the absorption coefficient. | ||

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## Latest revision as of 17:58, 13 April 2019

The natural logarithm of the ratio of the amplitudes of two successive cycles of a harmonic event. Where the amplitude decay is because of absorption, the logarithmic decrement can be related to *Q* and to the absorption coefficient.