I'm just getting started with my first vertical seismometer. I will be using
an extension spring and supported at 90 degrees. Bearing concept is 2 sets
of tungsten carbide rods and a silicon carbide ball bearings. One of the
springs I have tested is a Century Spring No. 312. K factor is .28
pounds/inch and resonant period is 1.25 seconds. The tungsten rods are as
received and have not been polished yet. Undamped, I measured the damping
constant to be 372 seconds. I used the equation of Y=A*e-t/T. How does the
372 seconds compare to other vertical systems. 

Gary

 

 

 

 

 

Gary Lindgren

585 Lincoln Ave

Palo Alto CA 94301

 

650-326-0655

 

  www.blue-eagle-technologies.com
Check out Lastest Seismometer Reading

  cymonsplace.blogspot.com 

 

 














I’m just getting started with my first =
vertical
seismometer. I will be using an extension spring and supported at 90 =
degrees.
Bearing concept is 2 sets of tungsten carbide rods and a silicon carbide =
ball
bearings. One of the springs I have tested is a Century Spring No. 312. =
K
factor is .28 pounds/inch and resonant period is 1.25 seconds. The =
tungsten
rods are as received and have not been polished yet. Undamped, I =
measured the
damping constant to be 372 seconds. I used the equation of Y=3DA*e-t/T. =
How does
the 372 seconds compare to other vertical systems. 

Gary

 

 

 

 

 

Gary Lindgren

585 Lincoln Ave

Palo Alto CA 94301

 

650-326-0655<=
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www.blue-eagle-technologies.com &nbs=
p;
Check out Lastest Seismometer =
Reading

cymonsplace.blogspot.com