PSN-L Email List Message
Subject: Setting magnetic damping level
From: "Robert O. Green" rog@..........
Date: Sat, 21 Feb 2009 17:12:25 -0800
I am a novice and working on a small vertical seismometer. I have
Larry's amplifier and A/D. My current approach to assessing the damping
is to move the coil some distance from the magnet and watch the wave
form following a 1 mm drop of the arm.
Are there other approaches?
How should the properly damped waveform look?
I have moved the VS under the house into the crawl space for now. This
is far better than my shaking house.
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