PSN-L Email List Message

Subject: FW: Folded Pendulum Design
From: "Brady Romberg" bromberg@.........
Date: Sat, 15 Feb 2003 20:10:53 -0700


I am currently a freshman at Colorado School of Mines and last semester
for one of my classes I was required to design and build a working
seismometer.  Our final design consisted of a folded pendulum which used
magnetic induction, an amplifying filter circuit, an A/D converter, and
Alan Jones' AmaSeis software.  I am continuing on with my folded
pendulum design this semester and I am trying to make some improvements
on it but I have some questions that I am having trouble finding the
answer for so if anyone could help me find some answers I would really
appreciate it.  
 
Where could I find a thin flexible metal sheet that I could use for the
inverted pendulum joints?
Where could I find what I believe is called a PZ electro crystal (the
crystal that expands when it receives a current) for testing our unit?
Where could I find information about optimizing the magnet / coil /
damper system?
How would I go about integrating an A/D converter into my circuit that
would have an output of "  98156158 " for the values 98,
156, 158?
How many samples per second does the 8 bit have compared to the 10 bit
and the 12 bit, and what exactly does bit mean?
 
If you have any questions about my design, advice, or helpful
information you can contact me at bromberg@......... 
Thank you for your time.
 
Brady Romberg
 

















I am currently a freshman at Colorado School of Mines = and last semester for one of my classes I was required to design and build a working seismometer.  Our = final design consisted of a folded pendulum which used magnetic induction, an amplifying filter circuit, an A/D converter, and Alan Jones’ = AmaSeis software.  I am continuing = on with my folded pendulum design this semester and I am trying to make some improvements on it but I have some questions that I am having trouble = finding the answer for so if anyone could help me find some answers I would = really appreciate it.  =

 

Where could I find a thin flexible metal sheet that I = could use for the inverted pendulum joints?

Where could I find what I believe is called a PZ = electro crystal (the crystal that expands when it receives a current) for = testing our unit?

Where could I find information about optimizing the = magnet / coil / damper system?

How would I go about integrating an A/D converter = into my circuit that would have an output of “  98<cr><lf>156<cr><lf>158 “ for the values 98, 156, 158?

How many samples per second does the 8 bit = have compared to the 10 bit and the 12 bit, and what exactly does bit = mean?

 

If you have any questions about my design, = advice, or helpful information you can contact me at bromberg@.........

Thank you for your = time.

 

Brady Romberg

 


[ Top ] [ Back ] [ Home Page ]