Hi Folks,  I am still experimenting with the basic structure of the =
folded Pendulum linkage. One normal pendulum, one inverted pendulum and =
a horz connecting arm.

1  I am assuming the length of the two pendulums should be the same and =
as long a practical.  I am thinking of 12 to 18" which would make the =
sensor about 24" to 36" tall.  I may go shorter........

2 I gather the length of the horz connecting arm, should be a long a =
practical.  In that, a longer arm would allow more room along the horz =
plane, on which to tweak the balance.  A too short arm, would make the =
balance point too small.
I would be using a fine threaded rod with a threaded mass and a threaded =
smaller mass, for extra fine adj.

3  Would such a device still require the same type of enclosure as a =
Lehman or Vertical?
4  Would the size of the mass be critical?  I would be using brass or SS =
shim stock at all points for hinges.








Hi Folks,  I am still =
experimenting with the=20
basic structure of the folded Pendulum linkage. One normal pendulum, one =

inverted pendulum and a horz connecting arm.
 
1  I am assuming the length of the =
two=20
pendulums should be the same and as long a practical.  I am =
thinking of 12=20
to 18" which would make the sensor about 24" to 36" tall.  I may go =

shorter........
 
2 I gather the length of the horz =
connecting arm,=20
should be a long a practical.  In that, a longer arm would allow =
more room=20
along the horz plane, on which to tweak the balance.  A too short =
arm,=20
would make the balance point too small.
I would be using a fine threaded rod =
with a=20
threaded mass and a threaded smaller mass, for extra fine =
adj.
 
3  Would such a device still =
require the same=20
type of enclosure as a Lehman or Vertical?
4  Would the size of the mass be=20
critical?  I would be using brass or SS shim stock at all points =
for=20
hinges.
 
Thanks, Ted