PSN-L Email List Message
Subject: Inertia Wheel Sensor
From: Chuck/Judy Burch cjburch@...........
Date: Sat, 13 Jun 2009 08:51:22 -0600
A wheel with most of its mass at the rim has a large moment of inertia
(the rotational analog of mass). If it's mounted with the axis
horizontal using a very low friction bearing, then it will tend to stay
at rest if the local earth's surface tilts. Morrissey constructed a
balance beam tiltmeter that operated on the same principle. It's
described on his website.
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