PSN-L Email List Message

Subject: Re: My seismometer vault solution
From: "Geoffrey" gmvoeth@...........
Date: Tue, 31 Oct 2006 21:12:18 -0700


What about the calibration of the instrument
itself ?

Will the instrument/sensor be adjusted properly
in the temp range it will operate ?


----- Original Message ----- 
Sent: Friday, October 27, 2006 4:16 PM
Subject: Re: My seismometer vault solution

> In a message dated 2006/10/27, geodynamics@....... writes:
>> Even slight jostling of the geophones can generate a pretty strong signal 
>> -- well in excess of 10-volts -- that can over-saturate or even damage some 
>> ADC boards.
> Hi Tim,
>       Jon is using one of Larry's amplifiers. It has 12 V rails.
>       If Jon does as you suggest and the whole area floods with snow melt 
> water, melts and re freezes a few times, won't it likely damage the geophones? 
> The climate in Iceland is chilly in winter. I would enclose them in a sealed 
> container under dry sand. It is not difficult to seal cable into plastic water 
> pipe. You can easily buy tank fittings for plastic water pipe to seal to a 
> container. 
>       Can you check this message and see if there is a HTML attachment, 
> please?
>       Regards,
>       Chris Chapman

Public Seismic Network Mailing List (PSN-L)

[ Top ] [ Back ] [ Home Page ]