On Fri, 17 May 2002, Olin Lathrop wrote:

>> Can anyone give me some recommendations on sensors for detecting tilting?
>I
>> hope to have a sensor that can detect when a car is being jack up, or
>towed.
>
>You could use a single accellerometer looking at the down component of
>gravit.  However, that will be rather innaccurate at small tilt angles.  A
>more sensitive system would use two or a dual axis accellerometer looking at
>the horizontal components of gravity.

Automotive applications use electrolytic tilt sensors. See my previous
posting on this.

Peter

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