PSN-L Email List Message
Subject: Re: Homade Geophone
From: "Geoff" gmvoeth@...........
Date: Mon, 8 Aug 2005 19:42:58 -0700
The Piezo Idea is very interesting
Have you ever heard of a strain guage approach where
you just hang a 10# or so weight from a strainguage
and measure the tiny weight changes due to ground acceleration ??
It sounds a lot like the piezo idea but a strain guage would
be resistive in nature I believe.
At the moment I am using the top 9 bits of a 12 bit A/D converter
looking at a +/- 2.048 voltage swing through amplifier filter with
a gain of about 90DB will that same setup work with the piezo
Do I need a special preamp for the piezo element ?
Public Seismic Network Mailing List (PSN-L)
[ Top ]
[ Back ]
[ Home Page ]