Hello Erich and Bob,

Thanks, but all of the credit goes to Dave Nelson for dreaming up the
idea and spending countless hours on this project.

That particular FMES is in a vault and I live in a generally quite
place. The vault is about 60 yards from the house and I get the signal
to the house via TCP/IP. The digitizer is a single channel 24 bit $150
device from www.symres.com which goes into an Earthworm transport
buffer and then published on the internet. My other FMES's are on a
WinSDR system. I must add that my Winsdr board also exports to an
Earthworm system.

In its most simple from and FMES can be built in an afternoon with
stuff you can get a hardware store.  The fluid is made conductive with
distilled water a .5% antifreeze and .1% anti-foam (Rug Doctor fluid).


http://www.volcanbaru.com/fmes/an_fmes.JPG
a newer model

http://www.volcanbaru.com/fmes/a_Tranducer.JPG
Transducer end

http://www.volcanbaru.com/fmes/coner_of_shop.JPG
corner of my shop an FMES is under the table under the silver foam
insulation box

http://www.volcanbaru.com/fmes/Electronics_stack.JPG
Dave elelctronics, the schematics and board files are available. The
LED make setup a snap.

http://www.volcanbaru.com/fmes/fmes_angel.JPG
new FMES on the work table

http://www.volcanbaru.com/fmes/fmes_angel2.JPG
more of the above

http://www.volcanbaru.com/fmes/fmes_base.JPG
Dave style base

http://www.volcanbaru.com/fmes/fmes_parts.JPG
Early FMES, they work real well and is made from hardware store stuff

http://www.volcanbaru.com/fmes/fms65.JPG
an FMES in my vault

http://www.volcanbaru.com/fmes/internal_and_external_electrodes.JPG
Electrode parts before assembly

http://www.volcanbaru.com/fmes/mexico_1_4.jpg mexico jan 4 on early
fmes 60 minute time scale
http://www.volcanbaru.com/fmes/Pinch_valve.JPG pinch valve, no longer
used
http://www.volcanbaru.com/fmes/sandwich.jpg
Sandwich Island quake and a little local event on first line and a bit
of noise on the second line. 120 minutes per line

http://www.volcanbaru.com/fmes/Transducer_detail.JPG
Transducer parts

http://www.volcanbaru.com/fmes/Transducer_end.JPG
Assembles transducer

http://www.volcanbaru.com/fmes/transducer_detai3.JPG
more transducer details

http://www.volcanbaru.com/fmes/transducer_detail2.JPG
more detail
http://www.volcanbaru.com/fmes/tube_valve.JPG
restriction detail

http://www.volcanbaru.com/fmes/two_traces.jpg
my broadband top lineand the FMES on the bottom line

http://www.volcanbaru.com/fmes/vault2.JPG
BB and FMES in my vault

I am sure that there are hundreds of ways to configure an FMES, these
just a few.

I will be on vacation for the next three weeks (starting the 28th) but
will be but will try to check my mail and will be glad to help anyone
get one of these going.  I am sure that Dave will help also.

I will try to write a bit more after dinner.  I talked to Dave and he
is going to pipe in.

Angel

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