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Subject: diamagnetic levitation seismometer possibility
From: Randall Peters PETERS_RD@..........
Date: Sun, 8 Jul 2012 09:40:40 -0400


For those of you who have had an interest in levitating graphite, you may f=
ind interesting a prototype instrument that I recently built.  I first witn=
essed the intriguing possibilities of diamagnetic levitation through a demo=
nstration by Chris Chapman about half a decade ago, when I visited with him=
 in England.  Only recently did I come to know about pyrolytic graphite (PG=
) plates, as opposed to the earlier experiments with rods.  Because the pla=
tes are amenable to use with my fully differential capacitive sensors, I de=
cided to try my (typically frustrating) hand at building such a tiltmeter/s=
eismometer-that I have called in the following online paper an 'earth motio=
n' detector.
http://physics.mercer.edu/hpage/diamagnetic/diamag.html
   The outstanding performance of this prototype really surprised me.  My t=
hanks to Meredith Lamb and John Lahr (deceased, whom I admired greatly) for=
 their pioneering work that steered me this direction,
    Randall

For those of you= who have had an interest in levitating graphite, you may find interesting = a prototype instrument that I recently built.  I first witnessed the i= ntriguing possibilities of diamagnetic levitation through a demonstration b= y Chris Chapman about half a decade ago, when I visited with him in England= ..  Only recently did I come to know about pyrolytic graphite (PG) plat= es, as opposed to the earlier experiments with rods.  Because the plat= es are amenable to use with my fully differential capacitive sensors, I dec= ided to try my (typically frustrating) hand at building such a tiltmeter/se= ismometer—that I have called in the following online paper an ‘= earth motion’ detector.

http://physics.me= rcer.edu/hpage/diamagnetic/diamag.html

   The outstanding performance of this prototype really surpri= sed me.  My thanks to Meredith Lamb and John Lahr (deceased, whom I ad= mired greatly) for their pioneering work that steered me this direction,

    Randall

<= /div>=

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