Hi all,

If one considers that a suspended gravity centered and reasonably balanced
mass on a pair of
crossed wire pivots, actually slightly enertia rolls in horizontal response
to a seismic signal;
would it be enticing to attach to the mass, a light weight mechanical
arm/flag to amplify
such rolling offset signals?  The natural period will of course be short,
but displacement sensors
can elongate the periods recorded.

I would think the flag/arm extension could best be put/directed vertically
up from the mass to
limit the physical seismometer horizontal size; and it could literally be of
any reasonable length
that hopefully doesn't upset the mass balance position.

Of course; a light signal mirror on the mass could do the same thing with ~
effort, and not
influence the balance position.

One could entertain a variety of mass attached velocity or displacement
sensors or feedback
from such.

Has anyone tried a resemblance of this?  Results?  Problem/s?  Missed
points?

Take care, Meredith

Hi all,

If one considers that a suspended gravity centered and reasonably balanced mass on a pair of
crossed wire pivots, actually slightly enertia rolls in horizontal response to a seismic signal;

would it be enticing to attach to the mass, a light weight mechanical arm/flag to amplify
such rolling offset signals?  The natural period will of course be short, but displacement sensors
can elongate the periods recorded. 


I would think the flag/arm extension could best be put/directed vertically up from the mass to
limit the physical seismometer horizontal size; and it could literally be of any reasonable length
that hopefully doesn't upset the mass balance position.


Of course; a light signal mirror on the mass could do the same thing with ~ effort, and not
influence the balance position.

One could entertain a variety of mass attached velocity or displacement sensors or feedback

from such.

Has anyone tried a resemblance of this?  Results?  Problem/s?  Missed points?  

Take care, Meredith