After about 12 months of thinking, planning and working (and
procrastinating) I finally have my seismograph up and working.  I now need
your expert input on what I did wrong or adjustment that I need to make to
get things fine tuned (or maybe coarsely tuned).

Please visit my web site www.cableone.net/jandmarshall and choose the
Seismic Page to view my project.

Problems I note right off
    1 - I have a 4-5 hz oscillation in the pendulum.
    2 - I seem to have a lot of environmental noise -- I can not correlate
it with actions in the house
    3 - Am I damped enough??

I am open to all comments and suggestions -- just remember this is my first
attempt at building a seismograph!
Jan Marshall
jandmarshall@............
www.cableone.net/jandmarshall
Nampa, ID






After =
about 12=20
months of thinking, planning and working (and procrastinating) I finally =
have my=20
seismograph up and working.  I now need your expert input on what I =
did=20
wrong or adjustment that I need to make to get things fine tuned (or =
maybe=20
coarsely tuned).
 
Please =
visit my web=20
site www.cableone.net/jandmarsha=
ll=20
and choose the Seismic Page to view my project.
 
Problems I note=20
right off
   =20
1 - I have a 4-5 hz oscillation in the =
pendulum.
    2=20
- I seem to have a lot of environmental noise -- I can not =
correlate it=20
with actions in the house
    3=20
- Am I damped enough??
 
I am =
open to all=20
comments and suggestions -- just remember this is my first attempt at =
building a=20
seismograph!
Jan=20
Marshall
jandmarshall@............
www.cableone.net/jandmarshallNampa,=20
ID