BISOPE series
29- Comparison of dB (dB) and % (Percent)
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'dB (dB, decibel)', which is used as the most common way
to determine the level of amplitude, is often used when trying to explain 'to
what extent to be compared', especially for the evaluation of linearity, which
is the usable frequency range of vibration and noise, measuring instruments or
sensors. there is. Explain again how this differs from '%'.
dB and % are comparison methods.
dB is an amplitude value expressing log (ratio of change rate), and % is a method of expressing the size of a linear (arithmetic) value. If % has changed by 50%, this is self-explanatory and easy to understand. But what does it mean that dB 'changed by 3dB'?............
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