PSN-L Email List Message

Subject: Question regarding leveling of vertical seismometer
From: "Kay Wyatt" kwyatt@.............
Date: Wed, 2 Apr 2008 12:22:33 -0700


Folks,

A quick question regarding the leveling screws for a vertical =
seismosmeter...

If you look at the three leveling screws on the AS-1 seismometer at =
http://www.amateurseismologist.com/, you see that there are two screws =
on the end with the vertical support and one screw on the end near the =
coil.  It is obvious why only three screws are used.  But is their a =
reason for putting the single screw near the coil and not near the =
vertical support.  Also, wouldn't there be greater stability if the =
single screw was actually a fixed pin, leaving the other two to be =
adjustable screws? =20

Just wondering before I drill the base in my next vertical seismometer.

Thanks,
Kay Wyatt








Folks,
 
A quick question regarding the leveling screws = for a=20 vertical seismosmeter...
 
If you look at the three leveling screws on the = AS-1=20 seismometer at http://www.amateurseismologi= st.com/,=20 you see that there are two screws on the end with the vertical support = and one=20 screw on the end near the coil.  It is obvious why only three = screws are=20 used.  But is their a reason for putting the single screw near the = coil and=20 not near the vertical support.  Also, wouldn't there be greater = stability=20 if the single screw was actually a fixed pin, leaving the other two to = be=20 adjustable screws? 
 
Just wondering before I drill the base in = my next=20 vertical seismometer.
 
Thanks,
Kay Wyatt
 
 

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