AREA UNDER LOGLOG PSD GRAPH
The area under a psdfrequency graph is equal to the mean square value of the signal. This program calculates the mean square and root mean square (rms) value under a straight line loglog curve, i.e. when the slope is given in dB/octave.

or
slope?


Five input values are required:
 Whether the slope is positive or negative
 The lower frequency value in Hertz
 The upper frequency value in Hertz
 The upper power spectral density (psd) value in g2/Hz
 Either the lower psd value in g2/Hz
OR the slope of the line in decibels per octave.


f_{lower}
Hz
f_{upper}
Hz

psd_{upper}
g^{2}/Hz

psd_{lower}
g^{2}/Hz
OR
slope
dB/oct.


Allowed frequency values: 0.001 to 9,999 Hz
Allowed psd values: 0.0001 to 1 g2/Hz
Allowed slope values: 1 to 10 dB/oct.
Results are given to 5 significant figures. Results over 100g rms are probably meaningless for most vibration testing scenarios and will not be displayed.
 Mean Square value =
g^{2}

Root Mean Square value =
g
