An elastic constant-internal friction spectrometer has been developed which has proved to be very useful in measurements which must last over extended periods of time as well as in measurements which require a high degree of resolution. The essential feature of the spectrometer is the fact that it holds the sample in oscillation at its resonance frequency and at a preset strain amplitude, and measures the internal friction of the sample through a measurement of the driving force necessary to maintain the preset amplitude.
No takes yet. Share an insight, caveat, or question.
Thompson et al. (1958) studied this question.
Synapse has enriched 3 closely related papers on similar clinical questions. Consider them for comparative context: