Hi all,
 While I personally think the Crossed Rod Hinge Suspension, can be
acquainted
with "moms apple pie"....ha....the zero torque suspension *is *a lower
friction
device that has seen abit more time and effort devoted to it in the very
recent past.
It can also be called a "figure of eight" hinge/suspension. Suspect its mai=
n
use
will likely only be for S-G's, or a vertical hanging mass/pendulum for
directional
horizontal movement sensing seismometers. It is abit more complicated to
build; but not beyond the capability of most of us with common hand tools.
 Chris Chapman and I have mulled over ways and means of its setup; and for
the present, the following URL is a roughly fair (progressive time span), o=
f
its
initial variations of setups through to the most recent mechanical
proposals.
 http://home.earthlink.net/~meredithlamb/zero-torque-suspension.html
 Take care, Meredith
Hi all,
 
While I personally think the Crossed Rod Hinge Suspension, can be acqu=
ainted
with "moms apple pie"....ha....the zero torque suspensi=
on is a lower friction
device that has seen abit more time and effort devoted to it in the ve=
ry recent past.
It can also be called a "figure of eight" hinge/suspension.&=
nbsp; Suspect its main use
will likely only be for S-G's, or a vertical hanging mass/pendulum for=
 directional
horizontal movement sensing seismometers.  It is abit more compli=
cated to 
build; but not beyond the capability of most of us with common hand to=
ols.
 
Chris Chapman and I have mulled over ways and means of its setup; and =
for
the present, the following URL is a roughly fair (progressive time spa=
n), of its
initial variations of setups through to the most recent mechanical pro=
posals.
 
http://home.earthlink.net/~meredithlamb/zero-torque-suspension.ht=
ml
 
Take care, Meredith