In a message dated 6/11/00 1:38:07 PM Eastern Daylight Time,
mlamb1@.......... writes:
<< With enough shielding, then it may
show somewhat more seismic signals, both here or in the country. >>
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Hi Meredith,
I have a couple of square feet of 1/32 thick mu-metal. Tell me how much
you need to shield your seismometer's magnets and I'll cut off a piece and
send it to you. It will be interesting to see what shielding it can do. I'll
need your postal mailing address though.
<< Have to confess my ignorance....what does the AAVSO stand
for in your email address? Your full name? Any web site?
Curiosity of course.>>
AAVSO stands for American Association of Variable Star Observers. AAVSO
has a solar division that publishes a monthly Solar Bulletin. The current May
issue of the Bulletin has a recording of the big magnetic storm of 24 May. It
was made with a homemade torsion-pendulum magnetometer. There are also
complete instructions how to build a flux gate magnetometer for a little over
$50. These include the schematic, a circuit board layout, parts list and two
pages describing how the flux gate works. If you, or anyone else, would like
a copy, just send me a self addressed envelope at my address below and I'll
be glad to send a copy.
Casper H. Hossfield
PO Box 23
New Milford, NY 10959
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Larry Cochrane <cochrane@..............>