Dave VanHorn wrote:

> That's what was bothering me.
> How do you measure gravity, in a portable instrument, when it's being 
> bumped and banged around?

Use a slower sampling period.  If you measure (integrate) the instrument 
over 10 seconds/minutes/hours/days you can pretty much zero out all the 
effects of movement that have smaller periods (1/2 the sampling rate or 
integration period, per nyquist).  Of course you're trading off update rate.

-Adam

>
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