At 09:21 AM 11/21/99 +0100, Antonio wrote: 

>>>>

Hi, I study seismology in Italy,  to the university  of Basilicata with 

center to Potenza. Could you help me to resolve the problem  formulated 

in precedence?

Hi and still thank you.

*****


Antonio,


What you build depends on the earthquakes that you want to record and

how much time and money you have to spend.  Larry Cochrane's web site

( http://psn.quake.net/ ) has a lot of information on building 

seismometers and setting up the necessary AD within your computer to

record and playback the data.  Larry sells many of the necessary

components at a good price.  This type of system can be set up to 

record either local or teleseismic events, depending on the seismometer

used.


At the other extreme, I have a table-top demonstration of seismology

that uses a very inexpensive ~10Hz exploration geophone and an AD 

with software sold by DaTaq for $100.  This is good for demonstrating

how seismology works and could even record local events.  There

is a description of the setup here:  http://lahr.org/john-jan/handson/


I've also used this same AD with a home-build seismometer that can

record teleseismic events.  There is a description here:  

http://lahr.org/john-jan/psn/gldn_psn.html


By the way, what does OT mean?


Hope this helps a bit.


John






John C. Lahr

1925 Foothills Road

Golden, CO 80402

(303) 215-9913

http://lahr.org/john-jan


I am only one, But still I am one.

I cannot do everything, and because I cannot 

do everything, I will not refuse 

to do the something that I can do.

Edward Everette Hale

_____________________________________________________________________

Public Seismic Network Mailing List (PSN-L)