PSN-L Email List Message

Subject: PSN-Shackleford-Gundersen Seismometer Electronics Board
From: George Bush ke6pxp@.......
Date: Mon, 14 Mar 2005 21:23:25 -0800


As you have probably noticed on the list, I am having problems getting the
circuit board working for the tiltmeter I am building. The
Shackleford-Gundersen Seismometer capacitive displacement detector looks
like it would work quite well on the mercury-cup tiltmeter I am building.
Have you had any experience with using your board to detect mercury pool
displacements? It seems like they should have about the same capacatance
and spacing as the S-G instrument.

I would appreciate your thoughts as I am very frustrated with the present
circuit board from the Nuts n Volts Tiltometer article.

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