Page 29 - Thomson, William Tyrrell-Theory of Vibration with Applications-Taylor _ Francis (2010)
P. 29
16 Oscillatory Motion Chap. 1
too 1000 10000 100000
f'-
Figure Pl-22.
1-22 The calibration curve of a piezoelectric accelerometer is shown in Fig. Pl-22 where the
ordinate is in decibels. If the peak is 32 dB, what is the ratio of the resonance response
to that at some low frequency, say, 1000 cps?
1-23 Using coordinate paper similar to that of Appendix A, outline the bounds for the
following vibration specifications. Max. acceleration = 2 g, max. displacement = 0.08
in., min. and max. frequencies: 1 Hz and 200 Hz.
