On-Line Control of Harmonic Oscillations in a Low-Frequency Resonant Mechanical Spectrometer
The on-line control unit is used to ensure high-accuracy computations of the logarithmic decrement. It is shown that the excitation process should be on-line low level real-time controlled during mechanical loss measurements to obtain high precision of the computations and to ensure a short-time excitation process.
B.M. Darinskii and L.B. Magalas
L. B. Magalas and A. Piłat, "On-Line Control of Harmonic Oscillations in a Low-Frequency Resonant Mechanical Spectrometer", Solid State Phenomena, Vol. 115, pp. 299-304, 2006