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. Author manuscript; available in PMC: 2014 Oct 1.
Published in final edited form as: Ann Biomed Eng. 2013 May 7;41(10):2120–2129. doi: 10.1007/s10439-013-0817-3

FIGURE 2.

FIGURE 2

An example of signal processing on RASOV data from a whole blood clot. (a) Timing of the frequency sweep of the driving force (0–400 Hz) generated by the magnet. (b) Corresponding measurement of average bead displacement showing increased vibration amplitude at the time when the driving frequency nears 206 Hz (Q≈2.2). (c) Computed acoustic vibration amplitude spectrum and fitting to a linear viscoelastic model, displaying a peak at 206 Hz. (d) Computed acoustic phase spectrum and model fitting. The phase exhibits a telltale shift from 0 to π at the resonance according to the Lorentzian solution to the linear viscoelastic model.