Hi all,

The below URL is of a simple table top test vertical setup I tried today.
Its uses only flat spring material for the
hinge/pivot, main spring/s and seems to allow some limited mass weight
variations by sliding the 2 main springs
on the "mast" (bracket) upward.   The test versions of the natural period
ran from 1 to almost 2 seconds...probably
typical for such.  This is ONLY a test vertical mainly looking at the pivot
and flat springs used; I don't really know
if its really worth pursuing.  Their is 3 "varieties" on the page; with the
last one looking much more potentially useful.

http://seismometer.googlepages.com/crv

Take care, Meredith
Hi all,
 


The below URL is of a simple table top test vertical setup I tried today.  Its uses only flat spring material for the
hinge/pivot, main spring/s and seems to allow some limited mass weight variations by sliding the 2 main springs

on the "mast" (bracket) upward.   The test versions of the natural period ran from 1 to almost 2 seconds...probably


typical for such.  This is ONLY a test vertical mainly looking at the pivot and flat springs used; I don't really know
if its really worth pursuing.  Their is 3 "varieties" on the page; with the last one looking much more potentially useful.  

 
http://seismometer.googlepages.com/crv
 
Take care, Meredith