Hi Gary,

 I have a design calculator for spring-supported vertical seismometers. See

  http://bobmcclure90.googlepages.com/springcalc

  You wrote: As configured the resonant period is very short, maybe =BD
second. Is there an equation that defines a vertical seismometer resonant
period. I assume the spring constant is part of the calculation.

Bob
Hi Gary,

 I have a design calculator for spring-supported verti=
cal seismometers. See

  http://bobmcclure90.googlepages.com/springcalc
<=
br>  You wrote: As configured the resonant period is very short, maybe=
 =BD second. Is there an equation that defines a vertical seismometer reson=
ant period. I assume the spring constant is part of the calculation.


Bob