Accelerometers used to measure vibration respond only to ac signal and are
piezoelectric.  Reread the original message string before taking things out
of context.
http://www.endevco.com/test/products_tofc_main.htm

-----Original Message-----
From: pic microcontroller discussion list
[mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of David VanHorn
Sent: Saturday, August 25, 2001 12:43 PM
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [EE]: "Tilt-o-meter" for RC plane


At 11:18 AM 8/25/01 -0700, James R. Cunningham wrote:
>???
>
>Ed Browne, Precision Electronic Solutions wrote:
>
> > The accelerometers that you have worked with have been piezoelectric and
do
> > not respond to gravity.

I think he's talking about a rate gyro, that senses rotation.
Any linear accelerometer will see at rest in earth gravity as a 1G
acceleration, when it's in the right axis.

--
Dave's Engineering Page: http://www.dvanhorn.org

I would have a link to http://www.findu.com/cgi-bin/find.cgi?KC6ETE-9 here
in my signature line, but due to the inability of sysadmins at TELOCITY to
differentiate a signature line from the text of an email, I am forbidden to
have it.

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