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[DPRG] Accelerometer Questions

Subject: [DPRG] Accelerometer Questions
From: Frank & Gail Elia elia_frank at hotmail.com
Date: Wed Nov 20 18:56:01 CST 2002

Hey Dan

I've done a quick search for prssure sensors and there seems to be options. 
Do you have any recommendations. Max depth would be 300 ft.

Frank






>From: Dan Miner <miner at centtech.com>
>To: "'Frank & Gail Elia'" <elia_frank at hotmail.com>, dprglist at dprg.org
>Subject: RE: [DPRG] Accelerometer Questions
>Date: Wed, 20 Nov 2002 18:40:46 -0600
>
>Pressure is the right way to go.  At the rates you're
>accelerating under water, the noise from the sensor will
>be bigger than the real signal.
>
>Get a pressure sensor.
>
>				- Dan Miner
>
> > -----Original Message-----
> > From: Frank & Gail Elia [mailto:elia_frank at hotmail.com]
> > Sent: Wednesday, November 20, 2002 6:11 PM
> > To: dprglist at dprg.org
> > Subject: [DPRG] Accelerometer Questions
> >
> >
> >
> > Has anyone worked with the ADXL105 or similar from Analog Devices?
> >
> > I need to find a way to tell if I am moving underwater.This
> > past weekend I
> > found myself diving in Lake Travis. At the bottom of the Lake
> > it was so dark
> > even powerful lights didn't help. The problem was having no
> > reference, I
> > could not tell if I was ascending/descending without
> > constantly monitoring
> > my dive computer. What I want is a simple device that will
> > tell my if I'm
> > going up or down via a simple audio tone.
> >
> > You could monitor changes in pressure, but it seems an
> > accelerometer would
> > do the job more simply, but I'm open to suggestions.
> >
> > Frank
> >
> >
> >
> >
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