If you could build a device
with like 0.7 Q that is natural
Friction or ?? then you need to rob no energy
from the detector to create a signal.
Better signal to noise ratio I would think.



----- Original Message ----- 
From: "Jerry Payton" 
To: 
Sent: Friday, November 09, 2007 8:46 AM
Subject: Re: More productive exchange of ideas with graphics?


> John,
> 
> I agree that visualization is VERY difficult sometimes, but I hesitate 
> creating a separate blog since it might water down the discussions here. 
> People might move to the blogs instead of here and some might be left out of 
> the comments.
> 
> I am doing a "desktop experiment" right now with this and it would best be 
> show rather than described.  I am suspending a ball point pen, as discussed. 
> On the other end of the pen is a ring magnet which is suspended about 1/2" 
> above the edge of a spool of bulk wire, which is connected directly 
> connected to my electronics.
> 
> Thus far, it detects my walking up to the desk and other movements.  I am 
> allowing some time to see if an EQ event happens (I hope).  Of course, it is 
> not damped and movement could be in any direction.  I haven't crossed that 
> bridge yet.
> 
> Jerry
> 
> 
> ----- Original Message ----- 
> From: John Lahr
> To: psn-l@..............
> Sent: Friday, November 09, 2007 9:26 AM
> Subject: More productive exchange of ideas with graphics?
> 
> 
> The discussion of various hinges and seismometer designs is very
> interesting, but in many cases I find it difficult to visualize the
> exact setup that is being described.  A photograph or a sketch would
> be very helpful.
> 
> One way to do this is to start a blog.  It's easy to do
> at:  http://blogger.com.  I started a blog, just to see how it
> worked, and it only took a few minutes to add an entry.  My "trial"
> entry shows the AS-1 sensor:  http://seismoedu.blogspot.com/
> 
> I'm sure there are other posting options as well.
> 
> Cheers,
> John
> 
> 
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