PSN-L Email List Message

Subject: Re: Finders Keepers ?
From: "Geoffrey" gmvoeth@...........
Date: Thu, 12 Nov 2009 12:44:44 -0700

I have heard of two companies selling
NEW velocity type sensors.

One is somewhere in TEXAS selling the HS-10
for like $3000 new down to 0.75Hz
If lucky you will find one used.

And another in PASADENA california selling a similar device.

I really like the HS10 but not the price.
As one of the little people $3000 may as well
be $3,000,000 :-)

The best alternative is to build your own or
buy from a third party catering to educators.
Im not sure Larry sells the geophone part
but he does the electronics. Maybe he will
include new technology like one of these MEMS
thingys in the future ?
But Acceleration gives you an odd picture
compared with velocity or actual displacement.
I think you can use calculus in a program to convert between
acceleration and other forms of the very same data
but not sure. So like maybe you record acceleration
then convert your data to whatever else.

Scribblings of a locos gringos.

----- Original Message ----- 
From: "GPayton" 
Sent: Thursday, November 12, 2009 7:21 AM
Subject: Finders Keepers ?

> Occasionally, I read about someone finding "this" or finding "that" 
> pertaining to our hobby.  I have always wondered WHERE they are finding 
> these prizes.  Excluding the R.T.Clark website and EBay, of course, I don't 
> know where you people are finding these sensors and such.
> Of course, living in the quite of North Central Texas, I do not want a 
> Strong Motion Accelerometer.  Are these finds from personal contacts, 
> websites, or where?
> Thanks,
> Jerry 

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