There is wide range of vertical seismometer design concepts to choose from.
My first inclination would be to go with the Sean Thomas Morrissey's
concept. It would sure be nice to have a vertical with an equivalent 50ft
beam length in a 2 sq. ft space. But the design detail and drift issues
would seem to be a problem. As a few mentioned, the Randall Peters design
http://physics.mercer.edu/hpage/new-z.html looks interesting. But I have a
few questions:

1.       What is a capacitive linear position sensor.

2.       If feedback is used, where does that go and what means to move the
moment arm.

 

Gary

 

 

 

 

 

 

 

Gary Lindgren

585 Lincoln Ave

Palo Alto CA 94301

 

650-326-0655

 

  www.blue-eagle-technologies.com

  cymonsplace.blogspot.com 

 

 














There is wide range of vertical seismometer design =
concepts
to choose from. My first inclination would be to go with the Sean Thomas
Morrissey's concept. It would sure be nice to have a vertical with an
equivalent 50ft beam length in a 2 sq. ft space. But the design detail =
and
drift issues would seem to be a problem. As a few mentioned, the Randall =
Peters
design  http://physics.mercer=
..edu/hpage/new-z.html
looks interesting. But I have a few questions:

1.      
What is a capacitive linear position =
sensor.

2.      
If feedback is used, where does that go and what =
means
to move the moment arm.

 

Gary

 

 

 

 

 

 

 

Gary Lindgren

585 Lincoln Ave

Palo Alto CA 94301

 

650-326-0655<=
/span>

 

www.blue-eagle-technologies.com

cymonsplace.blogspot.com