PSN-L Email List Message
Subject: Re: My seismometer vault solution
From: "Geoffrey" gmvoeth@...........
Date: Wed, 25 Oct 2006 00:26:16 -0700
The air must be kept absolutely dry
if you have a closed system.
You need something included inside the container
to absorb any free moisture.
In the military they pump dry nitrogen
into closed cavities.
What is the coldest temp ?
The airs dew point must be kept below that temp.
I would use a pyrex like glass container specially built to
keep a vacuum.
Provide electrical isolation from the ground.
It seems everything I want to do
simply costs too much monies.
I would need to be at a university working
on a government funded project to
try out all my ideas.
Regards;
geoff
----- Original Message -----
From: "Jón Frímann"
To: "PSN-Postlist"
Sent: Tuesday, October 24, 2006 5:30 PM
Subject: My seismometer vault solution
> Hi all
>
> I have finally figured out a good way to put my geophone underground,
> into relative quite and noise free envroment (as can be done here). I am
> going to have put it in a plast bucket with a waterproof top. That is
> the only cheap way for me to do it, I have looked at other options and
> they are exspensive for me and hard to impliment, since this solution
> has to be waterproof and that is the most important factor in all of
> this. I plan to put my geophone underground soon as possible, problay
> next week. Becose I have to do it before the ground completie freezes
> over.
>
> Regards.
> --
> Jón Frímann
> http://www.jonfr.com
> http://www.simnet.is/jonfr500/earthquake/
>
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