All:
 
One person's problem is another's data.  Instead of trying to constrain the
movement to one direction, try to figure out a way to measure the
displacement direction as well as amplitude.  Then one could detect
earthquakes from any direction and know something about the direction the
waves were travelling.
 
Just throwing another log on this bonfire, I'm afraid...
 
    Keith

  _____  

From: psn-l-request@.............. [mailto:psn-l-request@............... On
Behalf Of Jerry Payton
Sent: Friday, November 09, 2007 7:46 AM
To: psn-l@..............
Subject: Re: More productive exchange of ideas with graphics?


John,
 
I agree that visualization is VERY difficult sometimes, but I hesitate
creating a separate blog since it might water down the discussions here.
People might move to the blogs instead of here and some might be left out of
the comments.
 
I am doing a "desktop experiment" right now with this and it would best be
show rather than described.  I am suspending a ball point pen, as discussed.
On the other end of the pen is a ring magnet which is suspended about 1/2"
above the edge of a spool of bulk wire, which is connected directly
connected to my electronics.
 
Thus far, it detects my walking up to the desk and other movements.  I am
allowing some time to see if an EQ event happens (I hope).  Of course, it is
not damped and movement could be in any direction.  I haven't crossed that
bridge yet.
 
Jerry
 
 
----- Original Message ----- 
From: John Lahr   
To: psn-l@.............. 
Sent: Friday, November 09, 2007 9:26 AM
Subject: More productive exchange of ideas with graphics?

The discussion of various hinges and seismometer designs is very 
interesting, but in many cases I find it difficult to visualize the 
exact setup that is being described.  A photograph or a sketch would 
be very helpful.

One way to do this is to start a blog.  It's easy to do 
at:  http://blogger.com.  I started a blog, just to see how it 
worked, and it only took a few minutes to add an entry.  My "trial" 
entry shows the AS-1 sensor:  http://seismoedu.blogspot.com/

I'm sure there are other posting options as well.

Cheers,
John


__________________________________________________________

Public Seismic Network Mailing List (PSN-L)









All:
 
One person's problem is another's data.  =
Instead of=20
trying to constrain the movement to one direction, try to figure out a =
way to=20
measure the displacement direction as well as amplitude.  Then one =
could=20
detect earthquakes from any direction and know something about the =
direction the=20
waves were travelling.
 
Just throwing another log on this bonfire, I'm=20
afraid...
 
    Keith




From: psn-l-request@.................
[mailto:psn-l-request@............... On Behalf Of Jerry=20
Payton
Sent: Friday, November 09, 2007 7:46 AM
To:=20
psn-l@..............
Subject: Re: More productive exchange of =
ideas=20
with graphics?



John,
 
I agree that visualization is VERY difficult sometimes, but I=20
hesitate creating a separate blog since it might water down =
the=20
discussions here.  People might move to the blogs instead of here =
and some=20
might be left out of the comments.
 
I am doing a "desktop experiment" right now with this and it would =
best be=20
show rather than described.  I am suspending a ball point pen, as=20
discussed.  On the other end of the pen is a ring magnet which is =
suspended=20
about 1/2" above the edge of a spool of bulk wire, which is =
connected=20
directly connected to my electronics.
 
Thus far, it detects my walking up to the desk and other =
movements.  I=20
am allowing some time to see if an EQ event happens (I hope).  Of =
course,=20
it is not damped and movement could be in any direction.  I haven't =
crossed=20
that bridge yet.
 
Jerry
 
 
----- Original Message -----=20
From: John Lahr =

To: psn-l@.............. 
Sent: Friday, November 09, 2007 9:26 AM
Subject: More productive exchange of ideas with=20
graphics?

The discussion of various hinges and seismometer designs =
is very=20

interesting, but in many cases I find it difficult to visualize the=20

exact setup that is being described.  A photograph or a sketch =
would=20

be very helpful.

One way to do this is to start a blog.  =
It's=20
easy to do 
at:  http://blogger.com.  I started a =
blog, just=20
to see how it 
worked, and it only took a few minutes to add an =
entry. =20
My "trial" 
entry shows the AS-1 sensor:  http://seismoedu.blogspot.com/

I'm=20
sure there are other posting options as=20
well.

Cheers,
John


_________________________________=
_________________________

Public=20
Seismic Network Mailing List (PSN-L)

To leave this list email PSN-L-REQUEST@...............
 with=20

the body of the message (first line only): unsubscribe
See http://www.seismicnet.co=
m/maillist.html=20
for more information.