Hi Chris,

You're right it was originally developed for a gravimeter; but recommended
by this Zollner for use in a seismometer.
Haven't found this Zollner persons first name.  German design of 1869.
Being as their is almost zero on the web, it sounds
like it had "problems" of some sort.  I'd think it would need a very strong
boom to prevent bowing or vibration; and a
strong support frame.  The vertical single wire Wood-Andersons (horizontal
sensing) of the 1920's, are "sort-of" considered a variation.

Take care, Meredith

On Sat, Jul 12, 2008 at 5:43 AM,  wrote:

> In a message dated 2008/07/12, paleoartifact@......... writes:
>
> Looking at the history of seismometers on the web; the Zollner suspension
> has held some interest to me; as it "seems" to have alot of potential,
> although I've not yet tried it out. Theres very little on the web about it.
> http://njsas.org/gallery/pete_zollner/Figure_1_Standard_Seismograph
> and, its shown in Figure 6 below:
> http://earthquake.usgs.gov/learning/topics/seismology/history/part06.php
> Anyone tried such?  Results?
>
>
>
> Hi Meredith,
>
>        I think that it was more popular in Europe. I seem to remember
> gravimeters made this way?
>        The Sprengnethers used a horizontal wire in tension, rather than a
> diagonal wire.
>
>        Regards,
>
>        Chris
Hi Chris,
 
You're right it was originally developed for a gravimeter; but recommended by this Zollner for use in a seismometer.
Haven't found this Zollner persons first name.  German design of 1869.  Being as their is almost zero on the web, it sounds
like it had "problems" of some sort.  I'd think it would need a very strong boom to prevent bowing or vibration; and a
strong support frame.  The vertical single wire Wood-Andersons (horizontal sensing) of the 1920's, are "sort-of" considered a variation.
 
Take care, Meredith


On Sat, Jul 12, 2008 at 5:43 AM, <ChrisAtUpw@.......> wrote:


In a message dated 2008/07/12, paleoartifact@......... writes:


Looking at the history of seismometers on the web; the Zollner suspension has held some interest to me; as it "seems" to have alot of potential, although I've not yet tried it out. Theres very little on the web about it.

http://njsas.org/gallery/pete_zollner/Figure_1_Standard_Seismograph
and, its shown in Figure 6 below:
http://earthquake.usgs.gov/learning/topics/seismology/history/part06.php

Anyone tried such?  Results?


Hi Meredith,

       I think that it was more popular in Europe. I seem to remember gravimeters made this way?
       The Sprengnethers used a horizontal wire in tension, rather than a diagonal wire.


       Regards,

       Chris