Marchal van Lare  on 11/12/99 06:03:17 AM



Hi all,

I placed a resistance parallel with the coil, but the damping
does not seem to occur. The problem is, the pendulum keeps swinging
(sometimes even visibly!) and for now it did not had any plans to
cease its motion.


Thanks in advance.

Best regards,

Marchal van Lare




Marchal,

Have you tried just shorting the coil terminals to see how much damping you get
      with zero ohms of resistance? If you don't get any damping effect with the
      coil shorted you do not have enough coupling between the coil and the
      magnet. You will have to try decreasing the gap between the coil and
      magnet  and/or increasing the strength of the magnet.



Jim Hannon



_____________________________________________________________________

Public Seismic Network Mailing List (PSN-L)