In a message dated 05/12/2007 22:40:03 GMT Standard Time,
paleoartifact@......... writes:
I've put up another "table top test" web page in regard to diamagnetic
levitaion of pyrolytic
graphite as it could be used in a tiltmeter.
Hi Meredith,
Can you make a rectangular U out of 5 thou or similar Al foil and stick
this lengthways on the Graphite strips, maybe one side with a slot for
photocells?
Then make an inverted U structure out of mild steel, support it
centrally on the outside magnet pairs and fit it with a mild steel bolt downwards
over the centre of the Al U channel? Screw down the end of the steel bolt until
you get about the right damping?
The other way of evening out the magnet field is to use thin strips of
Iron (galvanised?) to sit on top of the three magnets, maybe with the edges
filed off at 45 degrees?
Regards,
Chris
In a message dated 05/12/2007 22:40:03 GMT Standard Time,=20
paleoartifact@......... writes:
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I've put up another "table top test" web page in regard to diamagneti=
c=20
levitaion of pyrolytic
graphite as it could be used in a=20
tiltmeter.
Hi Meredith,
Can you make a rectangular U out of 5 thou or=20
similar Al foil and stick this lengthways on the Graphite strips, maybe one=20=
side=20
with a slot for photocells?
Then make an inverted U structure out of m=
ild=20
steel, support it centrally on the outside magnet pairs and fit it=20
with a mild steel bolt downwards over the centre of the Al U=20
channel? Screw down the end of the steel bolt until you get about the r=
ight=20
damping?
The other way of evening out the magnet field i=
s to=20
use thin strips of Iron (galvanised?) to sit on top of the three magnet=
s,=20
maybe with the edges filed off at 45 degrees?
Regards,
Chris