the top plot is in time domain the signal from an accelerometer. the bottom plot is in frequency domain.
i do not understand the unit of the power, (dB ref 1.0E+0 V/sqrt (Hz).
can anyone shine me some light?
Since the later 1980s, manufacturing companies have seen over 3 percent in labor output year on year, with most of this productivty enhancement occuring because of the optimization of repetitive tasks. Download Now