Hi Folks,  I just recorded the first event using my Torsion wire/spring =
sensor.   The sensor was made using some bits and pieces from other =
units.  The construction was not carefully designed or executed, as I =
just wanted to see if the concept would work.   I will post three =
examples on PSN, Ch 1=3Da simple pendulum with a 2 second period,  Ch =
2=3DThe New Torsion Spring with a 5second period, Ch 3=3D a Lehman at 20 =
seconds.
All three sensor recorded the 5.8M ARCTIC OCEAN today.

I have another Torsion Spring Mock-up made of wood on my bench, not to =
used, but to test for general dimensions and period.   Happy to send =
picts and discuss design with anyone who is interested in helping me =
build a proper unit.   The mock up is only 18"? tall, has a torsion =
spring of about 14" and a boom of 12".  The frame looks like a Lehman, =
and the wire is near the vertical support.   Under these conditions I =
could get a period of 25 seconds, but unstable.  It now is adjusted to =
15 seconds and seems stable.  A longer or shorter period should be =
possible.

The Wire is not spring wire, although it has some spring to it.  It is =
..016" ss fishing lure.   Thanks to J.P. for sending me the wire.   For =
my experiments I have used, a bandsaw blade, brass music wire, and SS =
fishing wire.

Anyhow the idea seems to work and and very easy to adjust.  I am not =
sure what sensor period I should target.   Deciding that will dictate =
many of the other dimensions and overall size.








Hi Folks,  I just recorded the =
first event=20
using my Torsion wire/spring sensor.   The sensor was made=20
using some bits and pieces from other units.  The construction =
was not=20
carefully designed or executed, as I just wanted to see if the concept =
would=20
work.   I will post three examples on PSN, Ch 1=3Da simple =
pendulum with=20
a 2 second period,  Ch 2=3DThe New Torsion Spring with a 5second =
period, Ch=20
3=3D a Lehman at 20 seconds.
All three sensor recorded the 5.8M =
ARCTIC OCEAN=20
today.
 
I have another Torsion Spring Mock-up =
made of wood=20
on my bench, not to used, but to test for general dimensions and=20
period.   Happy to send picts and discuss design with anyone =
who is=20
interested in helping me build a proper unit.   The mock up is =
only=20
18"? tall, has a torsion spring of about 14" and a boom of 12".  =
The frame=20
looks like a Lehman, and the wire is near the vertical =
support.  =20
Under these conditions I could get a period of 25 seconds, but =
unstable. =20
It now is adjusted to 15 seconds and seems stable.  A longer or =
shorter=20
period should be possible.
 
The Wire is not spring wire, although =
it has some=20
spring to it.  It is .016" ss fishing lure.   Thanks to =
J.P. for=20
sending me the wire.   For my experiments I have used, a =
bandsaw=20
blade, brass music wire, and SS fishing wire.
 
Anyhow the idea seems to work and and =
very easy to=20
adjust.  I am not sure what sensor period I should =
target.  =20
Deciding that will dictate many of the other dimensions and overall=20
size.
 
Cheers, Ted