Randall,
You're getting too complicated. Just build one for yourself and then =
you can see right in front of you what it can do. Then you will convince =
yourself. I have had mine going for more than 1 1/2 years and it is =
beautiful. See 3rd and 4th figure down
http://www.blue-eagle-technologies.com/seismo1.html =
..
Gary
From:=
=
psnlist-request@.............. [mailto:psnlist-request@............... =
On Behalf Of Randall Pratt
Sent: Wednesday, August 17, =
2011 7:11 AM
To: psnlist@..............
Subject: Re: =
mesoanelastic complexity
Brett,
A thought on =
measuring this would be similar to comparing two instruments. =
Build two circuits in one instrument case and use a single leaf spring =
of double length with a central support. We would have the exact =
same input and the circuit noise could be balanced by switching =
electronics end so to speak to leave mechanical noise. Different =
materials or samples of the same material could be compared left end to =
right end or top side to bottom side reversing the stress in the same =
sample. Minor setup error should be some constant ratio and the =
noise random. Adding variable offset in the feedback could also =
provide different levels of stress by lifting or pulling the mass up or =
down to test noise in relation to the strain amount. =
Randy
[ Top ]
[ Back ]
[ Home Page ]