I have a graph of (gn)^2/Hz vs Hz. What I really want from this information is G's vs Hz. Anyone know how to get that from what I have? ???

Re: (gn)^2/Hz
by essbee on 07/12/05 at 18:14:35

Can you give more background information?

Re: (gn)^2/Hz
by scherry on 07/13/05 at 13:06:08

I used accelerometers on a fixture on a shake table to get the original graph. But I don't want (gn)^2/Hz. All I know is a gn is the same as a G.

Re: (gn)^2/Hz
by Robert Fogt on 07/15/05 at 06:52:33

g[sub]n[/sub] is the standard acceleration of gravity, and g is the average acceleration of gravity. Not exactly the same, but we can consider them the same for your purposes.

The only way you can do it is through algebra.

g[sub]n[/sub][sup]2[/sup]/Hz

Multiply by Hz, then take the square root. That leaves you with just g[sub]n[/sub]