0
$\begingroup$

Currently learning about PSD curves to which I have a query regarding the attached curve.

Why is the RMS value greater than its mean square value. I understand the RMS to be the the square root of the area under the curve and thus should always be less than the area of the curveenter image description here.

What am I missing? Thanks

Improve this question
$\endgroup$
2
  • 1
    $\begingroup$ err.. $\sqrt{\frac14} = \frac12 > \frac14$, meaning that $\sqrt{x}$ can be larger than $x$! (That's the case for any $0<x<1$.) $\endgroup$
    – Marcus Müller
    Commented Apr 20, 2020 at 9:40
  • $\begingroup$ OK Thanks. This raises questions from a random vibrations perspective. $\endgroup$
    – shoggananna
    Commented Apr 20, 2020 at 10:03

0

Reset to default

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Browse other questions tagged or ask your own question.