PSN-L Email List Message
Subject: Re: instrument design
From: Robert McClure bobmcclure90@.........
Date: Sat, 24 Oct 2009 13:26:46 -0400
It looks like an inverted pendulum to me, with a spring hinge at the bottom.
On 10/24/09, meredith lamb wrote:
> Hi James,
> Thanks very much for the E-Bay note on the seismometer! The pictures were ~
> vague, but I think I see the flat metal strip on top. Interesting hanging
> mass approach. I am "speculating" that it has a photo sensor
> on the bottom for rough centering purposes? The seller may send a PDF
> file on such which might
> also give more overall insight.
> Makes me wonder whether a round piano wire that replaces the flat metal
> strip would work out?
> On Fri, Oct 23, 2009 at 8:14 PM, James Allen wrote:
>> To Meredith and all, there is a Kinemetrics SH1 currently listed on Ebay
>> with the case removed so that you can see the mechanism.
>> Jim Allen
Public Seismic Network Mailing List (PSN-L)
[ Top ]
[ Back ]
[ Home Page ]