P == Period measured in seconds per cycle
F == Frquency in Hertz Cycles Per Second
Inversions of each other P=1/f   F=1/P
just like Q and Damping are the inverses
Q=1/Damp  Damp=1/Q
Dont know the symbol for Damping tho.
Generally the free period of an undamped system
which never really exists due to ENTROPY if nothing else.



----- Original Message ----- 
From: "Jón Frímann" 
To: "PSN-Postlist" 
Sent: Monday, June 11, 2007 17:11
Subject: Period of a seismometer (seconds)


Hi all

How do I terminate the period of a seismometer in seconds and hz ?

Regards.
-- 
Jón Frímann
http://www.jonfr.com
http://www.simnet.is/jonfr500/earthquake/

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