Gary,

    I was interested in your comments copied below, because of a similar st=
udy I did about five years ago.  There I looked for atmospheric pressure fl=
uctuations associated with Hurricane Dennis--also using a vertical seismome=
ter (modified Sprengnether, the sensor of which is a fully-differential cap=
acitive position type).  The pressure sensor was also a fully differential =
capacitive type (differential in terms of both pressure across the diaphrag=
m and potential across the electrodes).  A paper describing the work was pu=
blished on arxiv at



http://arxiv.org/abs/physics/0507137



Randall



Len Polucci on Nov. 7th. discussed the use of the Ashcroft differential air=
 pressure sensor. This device was just what I was looking for. I have built=
 an Infra-Sonic Atmospheric Air Pressure sensor. See http://sites.google.co=
m/site/seismicsensorinfo/infra-sonic-atmospheric-air-p

ressure-sensor    for details. The goal is to try to correlate atmospheric

pressure changes with vertical seismometer background noise.



Thank you Len for the info.



Gary















Gary,

    I was interested in your comment=
s
copied below, because of a similar study I did about five years ago. 
There I looked for atmospheric pressure fluctuations associated with Hurric=
ane
Dennis--also using a vertical seismometer (modified Sprengnether, the senso=
r of
which is a fully-differential capacitive position type).  The pressure
sensor was also a fully differential capacitive type (differential in terms=
 of
both pressure across the diaphragm and potential across the electrodes).&nb=
sp;
A paper describing the work was published on arxiv at

 

ht=
tp://arxiv.org/abs/physics/0507137

 

Randall

 

Len Polucci on Nov. 7th. discussed the use of the
Ashcroft differential air pressure sensor. This device was just what I was
looking for. I have built an Infra-Sonic Atmospheric Air Pressure sensor. S=
ee http://sites.google.com/site/seismicsensorinfo/infra-sonic-atmos=
pheric-air-p

ressure-sensor    for details. The g=
oal is
to try to correlate atmospheric

pressure changes with vertical seismometer backgrou=
nd
noise. 

 

Thank you Len for the info.

 

Gary