Philip & John & Ron-
    Philip, your post caught my eye, but John did a better job than I of
spelunking through the website to find the pertinent data. A low-cost
strong-motion sensor appropriate for mass deployments in seismogenic urban areas
has been my Holy Grail for the past decade, and so this looks interesting. If
you don't record the ground motions on both sides of the street, you can't
explain why the building on one side fell down and the building on the other
side did not: see Turkey .
    I did consider posting part of this message on the Poptronix forum

but it became too complicated for me to figure out.
-Edward

The Lahrs wrote:

> Philip,
> Thanks for the information on a seismic detector.  I found a .zip file
> in the magazine's archive section
> ( ftp://ftp.gernsback.com/pub/EN/seismic.zip ) which I think may
> be the information on this system.  It is a triggered system that
> one can set up via com port connection to a computer, then remove
> from the computer and set up in the field.  Later the system is
> returned to the computer for downloading the triggered events into
> the computer, again via the com port.
>
> This may be an interesting device for looking at local earthquakes,
> but not teleseisms.
>
> I believe the author is Ron Newton of Carson City, NV.( sjnewt@....... ).
> Maybe he will join the PSN discussion group.
>
> John
>
> At 11:16 PM 11/21/99 +1000, you wrote:
> >G'day All
> >
> >I was going throught the Electronics section of the newsagent the other day
> >and I came across this months Electronics Now magazine featuring an article
> >on a seismic detector. The whole project is created around a 10Hz vibration
> >sensor used in the oil industry. The sensor is coupled to a PIC
> >microcontroler with an internal 8 bit ADC. The sample rate is 16 times a
> >second and a serial FLASH memory chip is also included for storage of up to
> >1 minute of data. If you are interested the web site for the publishers is
> >
> >http://www.gernsback.com/
> >
> >And the web page for this months edition is at the following address
> >
> >http://www.gernsback.com/noframe/en/current/ENcontents_nf.html
> >
> >Please let me know if this information is of any use to anybody.
> >
> >
> >Yours
> >
> >Philip Schmidt
> >Australia
> >
> >
> >_____________________________________________________________________
> >
> >Public Seismic Network Mailing List (PSN-L)
> >See this web site for more information on the PSN:  http://psn.quake.net/
> >
> >To leave this list email listserver@.............. with the body of the
> >message: leave PSN-L
> >
> 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)
>
> To leave this list email listserver@.............. with the body of the
> message: leave PSN-L

--
Edward Cranswick                Tel: 303-273-8609
US Geological Survey, MS 966    Fax: 303-273-8600
PO Box 25046, Federal Center    cranswick@........
Denver, CO 80225-0046  USA      E.M. Forster said, "Only connect".




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