Seismographs or seismometers

Archiver

I am working on a new web page about
building an inexpensive micro based
seismograph or seismometer. See

http://www.infiltec.com/seismo/

I use a microprocessor like a STAMP
or a PIC. At present I am using a PIC14000
with on board 16 bit a/d, but I plan to
add a STAMP based design. My design
includes an inexpensive single chip,
8 pole bessel filter.

So far I have built a long period "Lehman"
type sensor that can detect most +5M quakes
in the US, and +6M worldwide. Plus
I have built a short period version with
a 4.5 Hz geophone that can detect local
seismic events. I am working on an
accelerometer version.

I currently have several units out for beta
test, and once the bugs are worked out I
plan to offer kits, at least for the electronics.

Ciao,

Dave Saum

Archiver

David,

Wow! Very impressive site. Thanks for sharing with us.

Regards, Theron Wierenga

David Saum wrote:
>
> I am working on a new web page about
> building an inexpensive micro based
> seismograph or seismometer. See
>
> http://www.infiltec.com/seismo/
>
> I use a microprocessor like a STAMP
> or a PIC. At present I am using a PIC14000
> with on board 16 bit a/d, but I plan to
> add a STAMP based design. My design
> includes an inexpensive single chip,
> 8 pole bessel filter.