PSN-L Email List Message

Subject: Re: RE. PERIOD
From: Larry Cochrane cochrane@..............
Date: Sat, 05 Aug 2000 13:56:29 -0700

WinQuake can be used to check the period. What you need to do is remove the
damping and record some data after exciting the boom. You then load the
"event" file into WinQuake and do an FFT. The FFT plot should have a peak
at the period of your sensor.

-Larry Cochrane
Redwood City, PSN

At 07:45 PM 8/2/00 -0700, you wrote:
>Is there a simple way to determine the period of a Lehman Seismograph in
>Winquake?  If not can any other software be utilized for this purpose?


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Larry Cochrane <cochrane@..............>