HyperDic: rayleigh_disk

English > 1 sense of the expression Rayleigh disk:
NOUNartifactRayleigh diskan acoustic radiometer consisting of a light disk suspended from a quartz thread
English > Rayleigh disk: 1 sense > noun 1, artifact
MeaningAn acoustic radiometer consisting of a light disk suspended from a quartz thread; when exposed to a progressive sound wave its torque can measure velocity.
Broaderradiometermeter to detect and measure radiant energy (electromagnetic or acoustic)

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